diff --git a/Core/CoreDatabase.h b/Core/CoreDatabase.h
index c4c47e2..25ba606 100644
--- a/Core/CoreDatabase.h
+++ b/Core/CoreDatabase.h
@@ -1549,7 +1549,8 @@
 
                log.Log( tmp.str(), eDB2_STATUS_ERROR );
 
-               *pRefCats = -1;
+               cats.erase(pRefCats);
+               cats.insert(-1);
                bRC = false;
             }
          }