diff --git a/libavfilter/vsrc_buffer.h b/libavfilter/vsrc_buffer.h
index 071403c773..fa204438d5 100644
--- a/libavfilter/vsrc_buffer.h
+++ b/libavfilter/vsrc_buffer.h
@@ -19,6 +19,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "avfilter.h"
+
 int av_vsrc_buffer_add_frame(AVFilterContext *buffer_filter, AVFrame *frame,
                              int64_t pts, AVRational pixel_aspect);