diff --git a/deno/rest/common.ts b/deno/rest/common.ts
index d3226c13..46d8fbf9 100644
--- a/deno/rest/common.ts
+++ b/deno/rest/common.ts
@@ -210,6 +210,8 @@ export enum RESTJSONErrorCodes {
 	ParameterEarlierThanCreation,
 	CommunityServerChannelsMustBeTextChannels,
 
+	TheEntityTypeOfTheEventIsDifferentFromTheEntityYouAreTryingToStartTheEventFor = 50091,
+
 	ServerNotAvailableInYourLocation = 50095,
 
 	ServerNeedsMonetizationEnabledToPerformThisAction = 50097,
diff --git a/rest/common.ts b/rest/common.ts
index d3226c13..46d8fbf9 100644
--- a/rest/common.ts
+++ b/rest/common.ts
@@ -210,6 +210,8 @@ export enum RESTJSONErrorCodes {
 	ParameterEarlierThanCreation,
 	CommunityServerChannelsMustBeTextChannels,
 
+	TheEntityTypeOfTheEventIsDifferentFromTheEntityYouAreTryingToStartTheEventFor = 50091,
+
 	ServerNotAvailableInYourLocation = 50095,
 
 	ServerNeedsMonetizationEnabledToPerformThisAction = 50097,