diff --git a/libs/nds/include/nds/Overlay.h b/libs/nds/include/nds/Overlay.h
deleted file mode 100644
index 254253bd..00000000
--- a/libs/nds/include/nds/Overlay.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef _NDS_OVERLAY_H
-#define _NDS_OVERLAY_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define EXTERN_OVERLAY_ID(name_or_index) extern u32 OVERLAY_##name_or_index##_ID;
-#define OVERLAY_ID(name_or_index) ((u32) & OVERLAY_##name_or_index##_ID)
-
-typedef struct Overlay {
-    /* 00 */ unk32 mId;
-    /* 04 */ void *mBaseAddress;
-    /* 08 */ u32 mTextSize;
-    /* 0c */ s32 mBssSize;
-    /* 10 */ unk32 mCtorStart;
-    /* 14 */ unk32 mCtorEnd;
-    /* 18 */ unk32 mFileId;
-    /* 1c */ u32 mFileSize;
-    /* 20 */
-} Overlay;
-
-u32 Overlay_FileSize(Overlay *overlay);
-void Overlay_ClearCacheAndBss(Overlay *overlay);
-void Overlay_func_02042238(unk32 *param1, Overlay *overlay);
-bool Overlay_func_02042250(Overlay *param1, Overlay *param2, s32 param3, unk32 param4, s32 param5, u32 param6, s32 param7,
-                           u32 param8);
-bool Overlay_func_020422ec(Overlay *param1, Overlay *param2, s32 param3);
-bool Overlay_func_0204238c(Overlay *overlay);
-bool Overlay_func_020423e8(s32 param1, unk32 param2, unk32 param3);
-void Overlay_Init(Overlay *overlay);
-void Overlay_RunGlobalDestructors(Overlay *overlay);
-bool Overlay_Destroy(Overlay *overlay);
-bool Overlay_Load(Overlay *overlay, unk32 param2);
-bool Overlay_Unload(Overlay *overlay, unk32 param2);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif