diff --git a/internal/c/qbx.cpp b/internal/c/qbx.cpp
index 69be591c7..4e19b5057 100644
--- a/internal/c/qbx.cpp
+++ b/internal/c/qbx.cpp
@@ -100,9 +100,12 @@ struct stat statbuf;
  //
  //********************************************************
 
-#include "User Mods\user_list.h"
-
 
+ #ifdef QB64_BACKSLASH_FILESYSTEM
+ #include "User Mods\user_list.h"
+#else
+ #include "User Mods/user_list.h"
+#endif