diff --git a/lib/specs/spec_0_2.js b/lib/specs/spec_0_2.js
index dfef99c..0b9a534 100644
--- a/lib/specs/spec_0_2.js
+++ b/lib/specs/spec_0_2.js
@@ -33,11 +33,11 @@ function Spec02(){
  * Check the spec constraints
  */
 Spec02.prototype.check = function(ce){
-  var to_check = ce;
-  if(!to_check) {
-    to_check = this.payload;
+  var toCheck = ce;
+  if(!toCheck) {
+    toCheck = this.payload;
   }
-  var valid = validate(to_check);
+  var valid = validate(toCheck);
 
   if(!valid) {
     throw {message: "invalid payload", errors: validate.errors};