diff --git a/src/battle_bg.c b/src/battle_bg.c
index 24a88c4f54..82355273bc 100644
--- a/src/battle_bg.c
+++ b/src/battle_bg.c
@@ -1,7 +1,7 @@
 #include "global.h"
 #include "battle.h"
 #include "sprite.h"
-#include "constants\trainers.h"
+#include "constants/trainers.h"
 #include "graphics.h"
 #include "decompress.h"
 #include "bg.h"