diff --git a/Makefile b/Makefile
index dfa69aa24c..0b9a257ed8 100644
--- a/Makefile
+++ b/Makefile
@@ -204,6 +204,9 @@ depend: .depend
 	$(MAKE) -C libavutil   depend
 	$(MAKE) -C libavcodec  depend
 	$(MAKE) -C libavformat depend
+ifeq ($(CONFIG_PP),yes)
+	$(MAKE) -C libpostproc depend
+endif
 ifeq ($(BUILD_VHOOK),yes)
 	$(MAKE) -C vhook       depend
 endif
diff --git a/libpostproc/Makefile b/libpostproc/Makefile
index c7bbdc1434..8f5c921eb5 100644
--- a/libpostproc/Makefile
+++ b/libpostproc/Makefile
@@ -20,6 +20,8 @@ CFLAGS  = -I.. -I$(SRC_PATH)/libavcodec $(OPTFLAGS)
 
 include $(SRC_PATH)/common.mak
 
+depend: postprocess.c
+
 ifeq ($(BUILD_SHARED),yes)
 postprocess_pic.o: postprocess.c
 	$(CC) -c $(CFLAGS) -fomit-frame-pointer -fPIC -DPIC -o $@ $<