--- rxvt-unicode/src/rxvtperl.xs	2023/03/05 06:11:32	1.259
+++ rxvt-unicode/src/rxvtperl.xs	2023/07/07 06:10:37	1.260
@@ -399,7 +399,7 @@
 {
   if (!perl)
     {
-      rxvt_push_locale (""); // perl init destroys current locale
+      rxvt_push_locale ("C"); // perl init destroys current locale
 
       {
         perl_environ = rxvt_environ;