diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 36526a1e76d753e83bc752acf584e93d5db2f0b5..867608ab3ca04606403cec807b18f80d4f404e3d 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -53,8 +53,8 @@ installmandocs: mandocs
 
 ###
 #External programs used
-KERNELDOC = scripts/kernel-doc
-DOCPROC   = scripts/basic/docproc
+KERNELDOC = $(srctree)/scripts/kernel-doc
+DOCPROC   = $(objtree)/scripts/basic/docproc
 
 XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
 #XMLTOFLAGS += --skip-validation