diff --git a/include/vlc_ancillary.h b/include/vlc_ancillary.h
index dbd905c094..2a0ae798e1 100644
--- a/include/vlc_ancillary.h
+++ b/include/vlc_ancillary.h
@@ -21,6 +21,8 @@
 #ifndef VLC_ANCILLARY_H
 #define VLC_ANCILLARY_H 1
 
+#include <stdint.h>
+
 /**
  * \defgroup ancillary Ancillary
  * \ingroup input