diff --git a/OpenWRT/build.sh b/OpenWRT/build.sh
index 72e4f06..05aca74 100755
--- a/OpenWRT/build.sh
+++ b/OpenWRT/build.sh
@@ -2,7 +2,7 @@
 
 PACKAGE=cronosagent
 
-PROJECT=$(pwd)/..
+PROJECT=$(readlink -f $0 | xargs dirname)/..
 OPENWRT=$HOME/openwrt
 
 if [ -d $OPENWRT/package/$PACKAGE ]