diff --git a/firefox-42.0b9/media/libav/libavutil/cpu.c b/firefox-42.0b9-work/media/libav/libavutil/cpu.c
index 354d21e..6a44cea 100644
--- a/firefox-42.0b9/media/libav/libavutil/cpu.c
+++ b/firefox-42.0b9-work/media/libav/libavutil/cpu.c
@@ -36,7 +36,6 @@
 #include <sys/param.h>
 #endif
 #include <sys/types.h>
-#include <sys/sysctl.h>
 #endif
 #if HAVE_SYSCONF
 #include <unistd.h>