fix typo
diff --git a/tools/jenkins/configurations/kvm.sh b/tools/jenkins/configurations/kvm.sh
index a6ac297..65fec29 100755
--- a/tools/jenkins/configurations/kvm.sh
+++ b/tools/jenkins/configurations/kvm.sh
@@ -22,7 +22,7 @@
 
 # devstack directory
 cd ../../..
-TOP_DIR=(pwd)
+TOP_DIR=$(pwd)
 
 # Name test instance based on executor
 BASE_NAME=executor-`printf "%02d" $EXECUTOR_NUMBER`