diff --git a/modules/structs/activity.go b/modules/structs/activity.go
index ea27fbfd77..1bb83135c3 100644
--- a/modules/structs/activity.go
+++ b/modules/structs/activity.go
@@ -10,7 +10,7 @@ type Activity struct {
 	UserID int64 `json:"user_id"` // Receiver user
 	// the type of action
 	//
-	// enum: create_repo,rename_repo,star_repo,watch_repo,commit_repo,create_issue,create_pull_request,transfer_repo,push_tag,comment_issue,merge_pull_request,close_issue,reopen_issue,close_pull_request,reopen_pull_request,delete_tag,delete_branch,mirror_sync_push,mirror_sync_create,mirror_sync_delete,approve_pull_request,reject_pull_request,comment_pull,publish_release,pull_review_dismissed,pull_request_ready_for_review,auto_merge_pull_request
+	// enum: ["create_repo", "rename_repo", "star_repo", "watch_repo", "commit_repo", "create_issue", "create_pull_request", "transfer_repo", "push_tag", "comment_issue", "merge_pull_request", "close_issue", "reopen_issue", "close_pull_request", "reopen_pull_request", "delete_tag", "delete_branch", "mirror_sync_push", "mirror_sync_create", "mirror_sync_delete", "approve_pull_request", "reject_pull_request", "comment_pull", "publish_release", "pull_review_dismissed", "pull_request_ready_for_review", "auto_merge_pull_request"]
 	OpType    string      `json:"op_type"`
 	ActUserID int64       `json:"act_user_id"`
 	ActUser   *User       `json:"act_user"`
diff --git a/modules/structs/attachment.go b/modules/structs/attachment.go
index c8a2c6634b..c97cdcb83c 100644
--- a/modules/structs/attachment.go
+++ b/modules/structs/attachment.go
@@ -18,7 +18,7 @@ type Attachment struct {
 	Created     time.Time `json:"created_at"`
 	UUID        string    `json:"uuid"`
 	DownloadURL string    `json:"browser_download_url"`
-	// Enum: attachment,external
+	// enum: ["attachment", "external"]
 	Type string `json:"type"`
 }
 
diff --git a/modules/structs/hook.go b/modules/structs/hook.go
index bb40aa06c0..b7f8861b76 100644
--- a/modules/structs/hook.go
+++ b/modules/structs/hook.go
@@ -45,7 +45,7 @@ type CreateHookOptionConfig map[string]string
 // CreateHookOption options when create a hook
 type CreateHookOption struct {
 	// required: true
-	// enum: forgejo,dingtalk,discord,gitea,gogs,msteams,slack,telegram,feishu,wechatwork,packagist
+	// enum: ["forgejo", "dingtalk", "discord", "gitea", "gogs", "msteams", "slack", "telegram", "feishu", "wechatwork", "packagist"]
 	Type string `json:"type" binding:"Required"`
 	// required: true
 	Config              CreateHookOptionConfig `json:"config" binding:"Required"`
diff --git a/modules/structs/issue.go b/modules/structs/issue.go
index 7ba7f77158..a67bdcf50e 100644
--- a/modules/structs/issue.go
+++ b/modules/structs/issue.go
@@ -63,7 +63,7 @@ type Issue struct {
 	// Whether the issue is open or closed
 	//
 	// type: string
-	// enum: open,closed
+	// enum: ["open", "closed"]
 	State    StateType `json:"state"`
 	IsLocked bool      `json:"is_locked"`
 	Comments int       `json:"comments"`
diff --git a/modules/structs/issue_milestone.go b/modules/structs/issue_milestone.go
index a840cf1820..051824469a 100644
--- a/modules/structs/issue_milestone.go
+++ b/modules/structs/issue_milestone.go
@@ -31,7 +31,7 @@ type CreateMilestoneOption struct {
 	Description string `json:"description"`
 	// swagger:strfmt date-time
 	Deadline *time.Time `json:"due_on"`
-	// enum: open,closed
+	// enum: ["open", "closed"]
 	State string `json:"state"`
 }
 
diff --git a/modules/structs/org.go b/modules/structs/org.go
index c0a545ac1c..b2b2c61a01 100644
--- a/modules/structs/org.go
+++ b/modules/structs/org.go
@@ -38,7 +38,7 @@ type CreateOrgOption struct {
 	Website     string `json:"website" binding:"ValidUrl;MaxSize(255)"`
 	Location    string `json:"location" binding:"MaxSize(50)"`
 	// possible values are `public` (default), `limited` or `private`
-	// enum: public,limited,private
+	// enum: ["public", "limited", "private"]
 	Visibility                string `json:"visibility" binding:"In(,public,limited,private)"`
 	RepoAdminChangeTeamAccess bool   `json:"repo_admin_change_team_access"`
 }
@@ -53,7 +53,7 @@ type EditOrgOption struct {
 	Website     string `json:"website" binding:"ValidUrl;MaxSize(255)"`
 	Location    string `json:"location" binding:"MaxSize(50)"`
 	// possible values are `public`, `limited` or `private`
-	// enum: public,limited,private
+	// enum: ["public", "limited", "private"]
 	Visibility                string `json:"visibility" binding:"In(,public,limited,private)"`
 	RepoAdminChangeTeamAccess *bool  `json:"repo_admin_change_team_access"`
 }
diff --git a/modules/structs/org_team.go b/modules/structs/org_team.go
index f8899b236b..4417758024 100644
--- a/modules/structs/org_team.go
+++ b/modules/structs/org_team.go
@@ -11,7 +11,7 @@ type Team struct {
 	Description             string        `json:"description"`
 	Organization            *Organization `json:"organization"`
 	IncludesAllRepositories bool          `json:"includes_all_repositories"`
-	// enum: none,read,write,admin,owner
+	// enum: ["none", "read", "write", "admin", "owner"]
 	Permission string `json:"permission"`
 	// example: ["repo.code","repo.issues","repo.ext_issues","repo.wiki","repo.pulls","repo.releases","repo.projects","repo.ext_wiki"]
 	// Deprecated: This variable should be replaced by UnitsMap and will be dropped in later versions.
@@ -27,7 +27,7 @@ type CreateTeamOption struct {
 	Name                    string `json:"name" binding:"Required;AlphaDashDot;MaxSize(255)"`
 	Description             string `json:"description" binding:"MaxSize(255)"`
 	IncludesAllRepositories bool   `json:"includes_all_repositories"`
-	// enum: read,write,admin
+	// enum: ["read", "write", "admin"]
 	Permission string `json:"permission"`
 	// example: ["repo.actions","repo.code","repo.issues","repo.ext_issues","repo.wiki","repo.ext_wiki","repo.pulls","repo.releases","repo.projects","repo.ext_wiki"]
 	// Deprecated: This variable should be replaced by UnitsMap and will be dropped in later versions.
@@ -43,7 +43,7 @@ type EditTeamOption struct {
 	Name                    string  `json:"name" binding:"AlphaDashDot;MaxSize(255)"`
 	Description             *string `json:"description" binding:"MaxSize(255)"`
 	IncludesAllRepositories *bool   `json:"includes_all_repositories"`
-	// enum: read,write,admin
+	// enum: ["read", "write", "admin"]
 	Permission string `json:"permission"`
 	// example: ["repo.code","repo.issues","repo.ext_issues","repo.wiki","repo.pulls","repo.releases","repo.projects","repo.ext_wiki"]
 	// Deprecated: This variable should be replaced by UnitsMap and will be dropped in later versions.
diff --git a/modules/structs/repo.go b/modules/structs/repo.go
index 76479ad79d..f2fe9c7ac3 100644
--- a/modules/structs/repo.go
+++ b/modules/structs/repo.go
@@ -109,7 +109,7 @@ type Repository struct {
 	Internal                      bool             `json:"internal"`
 	MirrorInterval                string           `json:"mirror_interval"`
 	// ObjectFormatName of the underlying git repository
-	// enum: sha1,sha256
+	// enum: ["sha1", "sha256"]
 	ObjectFormatName string `json:"object_format_name"`
 	// swagger:strfmt date-time
 	MirrorUpdated time.Time     `json:"mirror_updated,omitempty"`
@@ -154,10 +154,10 @@ type CreateRepoOption struct {
 	// DefaultBranch of the repository (used when initializes and in template)
 	DefaultBranch string `json:"default_branch" binding:"GitRefName;MaxSize(100)"`
 	// TrustModel of the repository
-	// enum: default,collaborator,committer,collaboratorcommitter
+	// enum: ["default", "collaborator", "committer", "collaboratorcommitter"]
 	TrustModel string `json:"trust_model"`
 	// ObjectFormatName of the underlying git repository
-	// enum: sha1,sha256
+	// enum: ["sha1", "sha256"]
 	ObjectFormatName string `json:"object_format_name" binding:"MaxSize(6)"`
 }
 
@@ -359,7 +359,7 @@ type MigrateRepoOptions struct {
 	// required: true
 	RepoName string `json:"repo_name" binding:"Required;AlphaDashDot;MaxSize(100)"`
 
-	// enum: git,github,gitea,gitlab,gogs,onedev,gitbucket,codebase
+	// enum: ["git", "github", "gitea", "gitlab", "gogs", "onedev", "gitbucket", "codebase"]
 	Service      string `json:"service"`
 	AuthUsername string `json:"auth_username"`
 	AuthPassword string `json:"auth_password"`
diff --git a/modules/structs/repo_collaborator.go b/modules/structs/repo_collaborator.go
index 7d39b5a798..2f03f0a725 100644
--- a/modules/structs/repo_collaborator.go
+++ b/modules/structs/repo_collaborator.go
@@ -5,7 +5,7 @@ package structs
 
 // AddCollaboratorOption options when adding a user as a collaborator of a repository
 type AddCollaboratorOption struct {
-	// enum: read,write,admin
+	// enum: ["read", "write", "admin"]
 	Permission *string `json:"permission"`
 }
 
diff --git a/modules/structs/repo_file.go b/modules/structs/repo_file.go
index 82bde96ab6..00c804146a 100644
--- a/modules/structs/repo_file.go
+++ b/modules/structs/repo_file.go
@@ -68,7 +68,7 @@ func (o *UpdateFileOptions) Branch() string {
 type ChangeFileOperation struct {
 	// indicates what to do with the file
 	// required: true
-	// enum: create,update,delete
+	// enum: ["create", "update", "delete"]
 	Operation string `json:"operation" binding:"Required"`
 	// path to the existing or new file
 	// required: true
diff --git a/services/forms/repo_form.go b/services/forms/repo_form.go
index 0fd8965df9..e18bcfdd8d 100644
--- a/services/forms/repo_form.go
+++ b/services/forms/repo_form.go
@@ -429,7 +429,7 @@ func (f *InitializeLabelsForm) Validate(req *http.Request, errs binding.Errors)
 // swagger:model MergePullRequestOption
 type MergePullRequestForm struct {
 	// required: true
-	// enum: merge,rebase,rebase-merge,squash,fast-forward-only,manually-merged
+	// enum: ["merge", "rebase", "rebase-merge", "squash", "fast-forward-only", "manually-merged"]
 	Do                     string `binding:"Required;In(merge,rebase,rebase-merge,squash,fast-forward-only,manually-merged)"`
 	MergeTitleField        string
 	MergeMessageField      string