diff --git a/metadata/service/environment/init.yml b/metadata/service/environment/init.yml
index d745098..2ec3191 100644
--- a/metadata/service/environment/init.yml
+++ b/metadata/service/environment/init.yml
@@ -4,6 +4,6 @@
   java:
     environment:
       enabled: true
-      version: ${_param:java_environment_version}
+      version: "${_param:java_environment_version}"
       platform: ${_param:java_environment_platform}
       development: true