diff --git a/lib/contracts/contribution.js b/lib/contracts/contribution.js
index dd6fe6d..cad029d 100644
--- a/lib/contracts/contribution.js
+++ b/lib/contracts/contribution.js
@@ -49,7 +49,7 @@ class Contribution extends Base {
 
   getByContributorAddress(address) {
     return this.functions.balanceOf(address)
-      then((balance) => {
+      .then((balance) => {
         count = balance.toNumber();
 
         let contributions = [];