diff --git a/tools/build_ramdisk.sh b/tools/build_ramdisk.sh
index 2c914dc..feaa8a9 100755
--- a/tools/build_ramdisk.sh
+++ b/tools/build_ramdisk.sh
@@ -57,7 +57,7 @@
 # Source params
 source ./stackrc
 
-CACHEDIR=${CACHEDIR:-/var/cache/devstack}
+CACHEDIR=${CACHEDIR:-/opt/stack/cache}
 
 DEST=${DEST:-/opt/stack}