diff --git a/packages/workflow/src/Interfaces.ts b/packages/workflow/src/Interfaces.ts
index 9a9995f557..af62220d83 100644
--- a/packages/workflow/src/Interfaces.ts
+++ b/packages/workflow/src/Interfaces.ts
@@ -102,6 +102,7 @@ export interface ICredentialType {
 	displayName: string;
 	extends?: string[];
 	properties: INodeProperties[];
+	documentationUrl?: string;
 	__overwrittenProperties?: string[];
 }