diff --git a/src/joystick/SDL_gamecontroller.c b/src/joystick/SDL_gamecontroller.c
index 440fea0c5..03bd7fb9b 100644
--- a/src/joystick/SDL_gamecontroller.c
+++ b/src/joystick/SDL_gamecontroller.c
@@ -730,8 +730,6 @@ SDL_GameControllerOpen(int device_index)
 	SDL_GameController *gamecontrollerlist;
 	ControllerMapping_t *pSupportedController = NULL;
 
-	int deviceMappingIndex = -1;
-
     if ((device_index < 0) || (device_index >= SDL_NumJoysticks())) {
         SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
         return (NULL);