1 files changed, 1 insertions, 0 deletions
diff --git a/include/link.h b/include/link.h
index a693e80a6..fe5429497 100644
--- a/include/link.h
+++ b/include/link.h
@@ -180,6 +180,7 @@ void LinkVSync(void);
 void Timer3Intr(void);
 void SerialCB(void);
 u8 GetLinkPlayerCount(void);
+bool32 InUnionRoom(void);
 
 void sub_800E0E8(void);
 bool8 sub_800A520(void);