diff --git a/environments/storage/nova-nfs.yaml b/environments/storage/nova-nfs.yaml
index fd92bc84b5..f2e8bc8a5f 100644
--- a/environments/storage/nova-nfs.yaml
+++ b/environments/storage/nova-nfs.yaml
@@ -19,7 +19,7 @@ parameter_defaults:
 
   # NFS version used for nova storage (when NovaNfsEnabled is true). Since NFSv3 does not support full locking a NFSv4 version need to be used. To not break current installations the default is the previous hard coded version 4.
   # Type: string
-  NovaNfsVersion: 4.2
+  NovaNfsVersion: "4.2"
 
   # ******************************************************
   # Static parameters - these are values that must be
diff --git a/sample-env-generator/storage.yaml b/sample-env-generator/storage.yaml
index aa1894b9df..691711741c 100644
--- a/sample-env-generator/storage.yaml
+++ b/sample-env-generator/storage.yaml
@@ -88,7 +88,7 @@ environments:
           - NovaNfsVersion
     sample_values:
       NovaNfsEnabled: True
-      NovaNfsVersion: '4.2'
+      NovaNfsVersion: '"4.2"'
     static:
       - NovaNfsEnabled
     description: |