diff --git a/driver/main.c b/driver/main.c
index 97917bd67..661e7604b 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -946,7 +946,7 @@ static void add_vpi_file(const char *name)
 
 #ifdef __MINGW32__
       char*tmp_name = strdup(name);
-      convert_to_MS_path(name);
+      convert_to_MS_path(tmp_name);
       name = tmp_name;
 #endif