diff --git a/src/app/datasources/helpers/store.helpers.ts b/src/app/datasources/helpers/store.helpers.ts
index aa18bd8..7792590 100644
--- a/src/app/datasources/helpers/store.helpers.ts
+++ b/src/app/datasources/helpers/store.helpers.ts
@@ -18,7 +18,15 @@
   }
 
   public urlFromCoreModel(name: string): string {
-    return `/core/${pluralize(name.toLowerCase())}`;
+    switch (name) {
+      // FIXME handling exceptions, understand why these 3 endpoints are autogenerated with an _f
+      case 'SiteRole':
+      case 'SliceRole':
+      case 'SlicePrivilege':
+        return `/core/${pluralize(name.split(/(?=[A-Z])/).map(w => w.toLowerCase()).join('_'))}`;
+      default:
+        return `/core/${pluralize(name.toLowerCase())}`;
+    }
   }
 
   public updateCollection(event: IWSEvent, subject: BehaviorSubject<any>): BehaviorSubject<any> {