diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index e6cfcd9487..750412da6b 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -526,7 +526,7 @@ TESTPROGS = drawutils filtfmts formats integral
 TOOLS-$(CONFIG_LIBZMQ) += zmqsend
 
 clean::
-	$(RM) $(CLEANSUFFIXES:%=libavfilter/libmpcodecs/%)
+	$(RM) $(CLEANSUFFIXES:%=libavfilter/dnn/%)
 
 OPENCL = $(subst $(SRC_PATH)/,,$(wildcard $(SRC_PATH)/libavfilter/opencl/*.cl))
 .SECONDARY: $(OPENCL:.cl=.c)