diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 7b8831fb4e37..c339cf59ad69 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -7,12 +7,12 @@
 # list of DOCBOOKS.
 
 DOCBOOKS := z8530book.xml  \
-	    kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
+	    kernel-hacking.xml kernel-locking.xml \
 	    writing_usb_driver.xml networking.xml \
 	    kernel-api.xml filesystems.xml lsm.xml kgdb.xml \
 	    gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
 	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
-	    sh.xml regulator.xml w1.xml \
+	    sh.xml w1.xml \
 	    writing_musb_glue_layer.xml
 
 ifeq ($(DOCBOOKS),)