diff --git a/libswscale/utils.c b/libswscale/utils.c
index 4458e8f700..b644ed9610 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -43,6 +43,7 @@
 #include "libavutil/cpu.h"
 #include "libavutil/avutil.h"
 #include "libavutil/bswap.h"
+#include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"