diff --git a/src/video/kmsdrm/SDL_kmsdrmvideo.h b/src/video/kmsdrm/SDL_kmsdrmvideo.h
index 9b5a573b9..29cfc1833 100644
--- a/src/video/kmsdrm/SDL_kmsdrmvideo.h
+++ b/src/video/kmsdrm/SDL_kmsdrmvideo.h
@@ -138,7 +138,6 @@ void KMSDRM_RaiseWindow(_THIS, SDL_Window * window);
 void KMSDRM_MaximizeWindow(_THIS, SDL_Window * window);
 void KMSDRM_MinimizeWindow(_THIS, SDL_Window * window);
 void KMSDRM_RestoreWindow(_THIS, SDL_Window * window);
-void KMSDRM_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
 void KMSDRM_DestroyWindow(_THIS, SDL_Window * window);
 
 /* Window manager function */