diff --git a/src/if_python.c b/src/if_python.c
index 43c8992..4c2760e 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -1556,6 +1556,12 @@
 	    rettv->v_type = VAR_NUMBER;
 	    rettv->vval.v_number = 0;
 	    break;
+	case VAR_NUMBER:
+	case VAR_STRING:
+	case VAR_FLOAT:
+	case VAR_JOB:
+	case VAR_SPECIAL:
+	    break;
     }
 }