diff --git a/src/compiler/diagnosticInformationMap.generated.ts b/src/compiler/diagnosticInformationMap.generated.ts
index 7e761dbb8a..5212f062ee 100644
--- a/src/compiler/diagnosticInformationMap.generated.ts
+++ b/src/compiler/diagnosticInformationMap.generated.ts
@@ -177,7 +177,7 @@ module ts {
         Generators_are_only_available_when_targeting_ECMAScript_6_or_higher: { code: 1219, category: DiagnosticCategory.Error, key: "Generators are only available when targeting ECMAScript 6 or higher." },
         Generators_are_not_allowed_in_an_ambient_context: { code: 1220, category: DiagnosticCategory.Error, key: "Generators are not allowed in an ambient context." },
         An_overload_signature_cannot_be_declared_as_a_generator: { code: 1221, category: DiagnosticCategory.Error, key: "An overload signature cannot be declared as a generator." },
-        _0_tag_already_specified: { code: 1219, category: DiagnosticCategory.Error, key: "'{0}' tag already specified." },
+        _0_tag_already_specified: { code: 1222, category: DiagnosticCategory.Error, key: "'{0}' tag already specified." },
         Duplicate_identifier_0: { code: 2300, category: DiagnosticCategory.Error, key: "Duplicate identifier '{0}'." },
         Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: { code: 2301, category: DiagnosticCategory.Error, key: "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor." },
         Static_members_cannot_reference_class_type_parameters: { code: 2302, category: DiagnosticCategory.Error, key: "Static members cannot reference class type parameters." },
diff --git a/src/compiler/diagnosticMessages.json b/src/compiler/diagnosticMessages.json
index 76702f0d0e..2aa5bdf298 100644
--- a/src/compiler/diagnosticMessages.json
+++ b/src/compiler/diagnosticMessages.json
@@ -699,7 +699,7 @@
 
     "'{0}' tag already specified.": {
         "category": "Error",
-        "code": 1219
+        "code": 1222
     },
     "Duplicate identifier '{0}'.": {
         "category": "Error",
diff --git a/tests/cases/fourslash/getJavaScriptSyntacticDiagnostics1.ts b/tests/cases/fourslash/getJavaScriptSyntacticDiagnostics1.ts
index 372ae8d6e2..3e7c3d0ca8 100644
--- a/tests/cases/fourslash/getJavaScriptSyntacticDiagnostics1.ts
+++ b/tests/cases/fourslash/getJavaScriptSyntacticDiagnostics1.ts
@@ -14,6 +14,6 @@ verify.getSyntacticDiagnostics(`[
     "start": 26,
     "length": 4,
     "category": "error",
-    "code": 1219
+    "code": 1222
   }
 ]`);
\ No newline at end of file