diff --git a/libavformat/mov.c b/libavformat/mov.c
index f7e6137581..91356adbd5 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -55,10 +55,6 @@
 
 #include "qtpalette.h"
 
-
-#undef NDEBUG
-#include <assert.h>
-
 /* those functions parse an atom */
 /* links atom IDs to parse functions */
 typedef struct MOVParseTableEntry {