diff --git a/src/userfunc.c b/src/userfunc.c
index c3b000e..65970e1 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -254,7 +254,7 @@
 	if (mustend && *p != endchar)
 	{
 	    if (!skip)
-		semsg(_(e_invarg2), *argp);
+		semsg(_(e_invalid_argument_str), *argp);
 	    goto err_ret;
 	}
 	if (*p == endchar)
@@ -3692,7 +3692,7 @@
 	if (!aborting())
 	{
 	    if (end != NULL)
-		semsg(_(e_invarg2), start);
+		semsg(_(e_invalid_argument_str), start);
 	}
 	else
 	    *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR);
@@ -4258,7 +4258,7 @@
 					: eval_isnamec(name_base[i])); ++i)
 		;
 	    if (name_base[i] != NUL)
-		emsg_funcname((char *)e_invarg2, arg);
+		emsg_funcname((char *)e_invalid_argument_str, arg);
 
 	    // In Vim9 script a function cannot have the same name as a
 	    // variable.
@@ -4909,7 +4909,7 @@
     if (numbered_function(name) && fudi.fd_dict == NULL)
     {
 	if (!eap->skip)
-	    semsg(_(e_invarg2), eap->arg);
+	    semsg(_(e_invalid_argument_str), eap->arg);
 	vim_free(name);
 	return;
     }