diff --git a/daemon/src/video/libav_deps.h b/daemon/src/video/libav_deps.h
index 58a0faf8fc718461f29a0016497e2303f5bbc4d2..5f87388dc296782c7cd3e34d28e8a3bcd9e1b84c 100644
--- a/daemon/src/video/libav_deps.h
+++ b/daemon/src/video/libav_deps.h
@@ -37,6 +37,7 @@ extern "C" {
 #include <libavdevice/avdevice.h>
 #include <libswscale/swscale.h>
 #include <libavutil/opt.h>
+#include <libavutil/mathematics.h> // for av_rescale_q (old libav support)
 }
 
 #include "libav_utils.h"