diff --git a/include/trainer_hill.h b/include/trainer_hill.h
index 60af0909a7..31480287a5 100644
--- a/include/trainer_hill.h
+++ b/include/trainer_hill.h
@@ -47,15 +47,6 @@ struct TrHillTag
     struct TrHillFloor floors[0];
 };
 
-struct TrHillTag_Half
-{
-    u8 unkField_0;
-    u8 unused1;
-    u8 unkField_2;
-    u32 checksum;
-    struct TrHillFloor floors[2];
-};
-
 extern u32 *gTrainerHillVBlankCounter;
 
 void CallTrainerHillFunction(void);