diff --git a/projects/ajsf-core/src/lib/shared/layout.functions.ts b/projects/ajsf-core/src/lib/shared/layout.functions.ts
index 59fc2afc..f5d47654 100755
--- a/projects/ajsf-core/src/lib/shared/layout.functions.ts
+++ b/projects/ajsf-core/src/lib/shared/layout.functions.ts
@@ -1062,7 +1062,7 @@ export function buildTitleMap(
     }
   }
   if (!fieldRequired && !hasEmptyValue) {
-    newTitleMap.unshift({ name: '<em>None</em>', value: null });
+    newTitleMap.unshift({ name: '<em>None</em>', value: '' });
   }
   return newTitleMap;
 }