diff --git a/app/src/stream_sink.c b/app/src/stream_sink.c
index c9033078..ceced111 100644
--- a/app/src/stream_sink.c
+++ b/app/src/stream_sink.c
@@ -2,6 +2,7 @@
 
 #include <assert.h>
 #include <inttypes.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <libavcodec/avcodec.h>