diff --git a/libavdevice/sdl2.c b/libavdevice/sdl2.c
index 491c8dafe8..35b0bf4d35 100644
--- a/libavdevice/sdl2.c
+++ b/libavdevice/sdl2.c
@@ -23,6 +23,8 @@
  * libSDL2 output device
  */
 
+#include "config.h"
+
 #include <SDL.h>
 #include <SDL_thread.h>