fix typo
diff --git a/tools/jenkins/jenkins_home/build_jenkins.sh b/tools/jenkins/jenkins_home/build_jenkins.sh
index 7d68679..d60679b 100755
--- a/tools/jenkins/jenkins_home/build_jenkins.sh
+++ b/tools/jenkins/jenkins_home/build_jenkins.sh
@@ -28,7 +28,7 @@
 
 # Clean out old jenkins - useful if you are having issues upgrading
 CLEAN_JENKINS=${CLEAN_JENKINS:-no}
-if [ "$CLEAN_JENKINS" = "yes" ] then;
+if [ "$CLEAN_JENKINS" = "yes" ]; then
     apt-get remove jenkins jenkins-common
 fi