diff --git a/dev-util/cmake/cmake-2.8.4.bep b/dev-util/cmake/cmake-2.8.4.bep
index 9107587ae..febe96ca3 100644
--- a/dev-util/cmake/cmake-2.8.4.bep
+++ b/dev-util/cmake/cmake-2.8.4.bep
@@ -7,7 +7,15 @@ STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd cmake-2.8.4
-	./configure --prefix=/boot/common
+	# cmake appends the prefix to mandir and datadir 
+	# so using ../../ to back that part out but for some reason
+	# the doc was also picking up /boot, so had to back it out 3 times
+	# this seems to work but might still need some further adjusting
+	
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` \
+		--mandir=../../`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/man \
+		--datadir=../../`finddir B_COMMON_DATA_DIRECTORY` \
+		--docdir=../../../`finddir B_COMMON_DOCUMENTATION_DIRECTORY`/doc
 	make
 }
 
@@ -15,5 +23,6 @@ INSTALL {
 	cd cmake-2.8.4
 	make install
 }
+
 LICENSE="CMake"
 COPYRIGHT="2002-2011 Kitware, Inc., Insight Consortium, All rights reserved."