diff --git a/modules/video_output/win32/direct3d11.c b/modules/video_output/win32/direct3d11.c
index d551e15d56686fe3cfe682ec5f021aff49b27f17..4a29d5ff98a2e1bae82efec8c9e4713f99bdb168 100644
--- a/modules/video_output/win32/direct3d11.c
+++ b/modules/video_output/win32/direct3d11.c
@@ -30,7 +30,6 @@
 # include "config.h"
 #endif
 
-#include <assert.h>
 #include <vlc_common.h>
 #include <vlc_plugin.h>
 #include <vlc_vout_display.h>