diff --git a/doc/Makefile b/doc/Makefile
index d472dc3297..744a9fbc18 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,3 +1,7 @@
+-include ../config.mak
+
+VPATH=$(SRC_PATH)/doc
+
 all: ffmpeg-doc.html faq.html ffserver-doc.html ffplay-doc.html hooks.html \
      ffmpeg.1 ffserver.1 ffplay.1
 
diff --git a/vhook/Makefile b/vhook/Makefile
index 5b68b43d09..13353551b4 100644
--- a/vhook/Makefile
+++ b/vhook/Makefile
@@ -1,5 +1,7 @@
 include ../config.mak
 
+VPATH=$(SRC_PATH)/vhook
+
 CFLAGS=$(VHOOKCFLAGS) -I.. -I$(SRC_PATH) -I$(SRC_PATH)/libavformat \
        -I$(SRC_PATH)/libavcodec -I$(SRC_PATH)/libavutil -DHAVE_AV_CONFIG_H