diff --git a/client/mysqltest.c b/client/mysqltest.c
index 04d1f59dd4c..e1d793028a7 100644
--- a/client/mysqltest.c
+++ b/client/mysqltest.c
@@ -5837,7 +5837,7 @@ int main(int argc, char **argv)
 
   init_builtin_echo();
 #ifdef __WIN__
-  is_windows= 0;
+  is_windows= 1;
   init_tmp_sh_file();
   init_win_path_patterns();
 #endif