diff --git a/packages/mermaid/src/diagrams/class/classDb.ts b/packages/mermaid/src/diagrams/class/classDb.ts
index 74053c4b1..14232426b 100644
--- a/packages/mermaid/src/diagrams/class/classDb.ts
+++ b/packages/mermaid/src/diagrams/class/classDb.ts
@@ -51,7 +51,7 @@ const splitClassIdAndType = function (_id: string) {
     genericType = sanitizeText(split[1]);
   }
 
-  return { classId: classId, type: genericType };
+  return { classId, type: genericType };
 };
 
 /**