diff --git a/grails-bootstrap/src/main/groovy/grails/util/Environment.java b/grails-bootstrap/src/main/groovy/grails/util/Environment.java
index <HASH>..<HASH> 100644
--- a/grails-bootstrap/src/main/groovy/grails/util/Environment.java
+++ b/grails-bootstrap/src/main/groovy/grails/util/Environment.java
@@ -100,7 +100,7 @@ public enum Environment {
     }
 
     private void initialize() {
-        name = toString().toLowerCase(Locale.getDefault());
+        name = toString().toLowerCase(Locale.ENGLISH);
     }
 
     /**
fix for GRAILS-<I> "Turkish locale issue with Environment.name"