diff --git a/soh/src/overlays/actors/ovl_En_ChristmasTree/z_en_christmastree.c b/soh/src/overlays/actors/ovl_En_ChristmasTree/z_en_christmastree.c
index f67812fe6d..b24aaf4d1c 100644
--- a/soh/src/overlays/actors/ovl_En_ChristmasTree/z_en_christmastree.c
+++ b/soh/src/overlays/actors/ovl_En_ChristmasTree/z_en_christmastree.c
@@ -6,6 +6,7 @@
 
 #include "z_en_christmastree.h"
 #include "soh_assets.h"
+#include "soh/Enhancements/game-interactor/GameInteractor.h"
 
 void EnChristmasTree_Init(Actor* thisx, PlayState* play);
 void EnChristmasTree_Destroy(Actor* thisx, PlayState* play);