diff --git a/lib/engine_underscore.js b/lib/engine_underscore.js
index d619649..d84e30d 100644
--- a/lib/engine_underscore.js
+++ b/lib/engine_underscore.js
@@ -40,7 +40,6 @@ _.mixin({
         dataIn instanceof Object && currentContext instanceof Object) {
       data = addParentContext(data, currentContext);
     }
-
     compiled = _.template(partial);
 
     return compiled(data);
@@ -106,8 +105,8 @@ var engine_underscore = {
     return renderedHTML;
   },
 
-  registerPartial: function (oPattern) {
-    partialRegistry[oPattern.key] = oPattern.template;
+  registerPartial: function (pattern) {
+    partialRegistry[pattern.patternPartial] = pattern.template;
   },
 
   // find and return any {{> template-name }} within pattern
diff --git a/package.json b/package.json
index 689ca2a..cf32bfa 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "patternengine-node-underscore",
   "description": "The Underscore engine for Pattern Lab / Node",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "main": "lib/engine_underscore.js",
   "dependencies": {
     "underscore": "^1.8.3"