diff --git a/src/vim9compile.c b/src/vim9compile.c
index 131bab7..a7c412e 100644
--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -1035,7 +1035,8 @@
 
     if (eap->forceit)
     {
-	emsg(_(e_cannot_use_bang_with_nested_def));
+	semsg(_(e_cannot_use_bang_with_nested_def_str),
+		eap->cmdidx == CMD_def ? ":def" : ":function");
 	return NULL;
     }