1 files changed, 2 insertions, 2 deletions
diff --git a/safe.c b/safe.c
index d790156c03..1f954ec8b9 100644
--- a/safe.c
+++ b/safe.c
@@ -90,8 +90,8 @@ rb_secure(int level)
     if (level <= rb_safe_level()) {
 	ID caller_name = rb_frame_callee();
 	if (caller_name) {
-	    rb_raise(rb_eSecurityError, "Insecure operation `%s' at level %d",
-		     rb_id2name(caller_name), rb_safe_level());
+	    rb_raise(rb_eSecurityError, "Insecure operation `%"PRIsVALUE"' at level %d",
+		     rb_id2str(caller_name), rb_safe_level());
 	}
 	else {
 	    rb_raise(rb_eSecurityError, "Insecure operation at level %d",