diff --git a/fftools/graph/graphprint.c b/fftools/graph/graphprint.c
index 5b050506d0..c2621bc38b 100644
--- a/fftools/graph/graphprint.c
+++ b/fftools/graph/graphprint.c
@@ -33,6 +33,7 @@
 
 #include "libavutil/avassert.h"
 #include "libavutil/avstring.h"
+#include "libavutil/mem.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/dict.h"
 #include "libavutil/common.h"