diff --git a/tools/build/setnextversion.sh b/tools/build/setnextversion.sh
index 71173a3a08c..7da3765704a 100755
--- a/tools/build/setnextversion.sh
+++ b/tools/build/setnextversion.sh
@@ -64,8 +64,8 @@ echo "found $currentversion"
 echo 'setting version numbers'
 mvn versions:set -DnewVersion=$version -P vmware -P developer -P systemvm -P simulator -P baremetal -P ucs -Dnonoss
 mv deps/XenServerJava/pom.xml.versionsBackup deps/XenServerJava/pom.xml
-perl -pi -e 's/$ENV{'currentversion'}/$ENV{'version'}/' deps/XenServerJava/pom.xml
-perl -pi -e 's/$ENV{'currentversion'}/$ENV{'version'}/' tools/apidoc/pom.xml
+perl -pi -e "s/$currentversion/$version/" deps/XenServerJava/pom.xml
+perl -pi -e "s/$currentversion/$version/" tools/apidoc/pom.xml
 git clean -f
 
 echo 'commit changes'