diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index e4f1130787..916e54aac8 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -209,3 +209,6 @@ OBJS-$(CONFIG_MOVIE_FILTER)                  += src_movie.o
 
 TOOLS     = graph2dot
 TESTPROGS = drawutils filtfmts formats
+
+clean::
+	$(RM) $(CLEANSUFFIXES:%=libavfilter/libmpcodecs/%)