diff --git a/src/play/modules/less/PlayLessEngine.java b/src/play/modules/less/PlayLessEngine.java
index c244906..82d3187 100644
--- a/src/play/modules/less/PlayLessEngine.java
+++ b/src/play/modules/less/PlayLessEngine.java
@@ -102,7 +102,7 @@ protected Set<File> getImportsFromFile(File lessFile) throws IOException {
 
     protected String compile(File lessFile) {
         try {
-            return lessEngine.compile(lessFile);
+            return lessEngine.compile(lessFile, !devMode);
         } catch (LessException e) {
             return handleException(lessFile, e);
         }