diff --git a/src/video/sdl_v.cpp b/src/video/sdl_v.cpp
index 73e3db5670..ce6289f92a 100644
--- a/src/video/sdl_v.cpp
+++ b/src/video/sdl_v.cpp
@@ -695,6 +695,7 @@ void VideoDriver_SDL::Stop()
 
 void VideoDriver_SDL::InputLoop()
 {
+	uint32 mod = SDL_GetModState();
 	int numkeys;
 	Uint8 *keys = SDL_GetKeyState(&numkeys);