diff --git a/cmd/dendrite-demo-pinecone/main.go b/cmd/dendrite-demo-pinecone/main.go
index fb988ebe1..be34365b4 100644
--- a/cmd/dendrite-demo-pinecone/main.go
+++ b/cmd/dendrite-demo-pinecone/main.go
@@ -143,6 +143,9 @@ func main() {
 		cfg.MSCs.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-mscs.db", filepath.Join(*instanceDir, *instanceName)))
 		cfg.ClientAPI.RegistrationDisabled = false
 		cfg.ClientAPI.OpenRegistrationWithoutVerificationEnabled = true
+		cfg.MediaAPI.BasePath = config.Path(*instanceDir)
+		cfg.SyncAPI.Fulltext.Enabled = true
+		cfg.SyncAPI.Fulltext.IndexPath = config.Path(*instanceDir)
 		if err := cfg.Derive(); err != nil {
 			panic(err)
 		}
diff --git a/cmd/dendrite-demo-yggdrasil/main.go b/cmd/dendrite-demo-yggdrasil/main.go
index cd0066679..38c25cdec 100644
--- a/cmd/dendrite-demo-yggdrasil/main.go
+++ b/cmd/dendrite-demo-yggdrasil/main.go
@@ -134,6 +134,9 @@ func main() {
 		cfg.MSCs.Database.ConnectionString = config.DataSource(fmt.Sprintf("file:%s-mscs.db", filepath.Join(*instanceDir, *instanceName)))
 		cfg.ClientAPI.RegistrationDisabled = false
 		cfg.ClientAPI.OpenRegistrationWithoutVerificationEnabled = true
+		cfg.MediaAPI.BasePath = config.Path(*instanceDir)
+		cfg.SyncAPI.Fulltext.Enabled = true
+		cfg.SyncAPI.Fulltext.IndexPath = config.Path(*instanceDir)
 		if err := cfg.Derive(); err != nil {
 			panic(err)
 		}