diff --git a/lib/contributors/prompt.js b/lib/contributors/prompt.js
index 07fb3cc..b91fe74 100644
--- a/lib/contributors/prompt.js
+++ b/lib/contributors/prompt.js
@@ -34,19 +34,19 @@ function getQuestions(options, username, contributions) {
       answers.username = answers.username || username;
       return options.contributors
         .filter((entry) => entry.login.toLowerCase() === answers.username.toLowerCase())
-        .reduce((memo, entry) => memo.concat(entry.contributions), []);
+        .reduce((allEntries, entry) => allEntries.concat(entry.contributions), []);
     },
     choices: contributionChoices(options),
     validate: function (input, answers) {
       answers.username = answers.username || username;
       var previousContributions = options.contributors
         .filter((entry) => entry.login.toLowerCase() === answers.username.toLowerCase())
-        .reduce((memo, entry) => memo.concat(entry.contributions), []);
+        .reduce((allEntries, entry) => allEntries.concat(entry.contributions), []);
 
       if (!input.length) {
-        return 'Use space to select at least one contribution type.'
+        return 'Use space to select at least one contribution type.';
       } else if (_.isEqual(input, previousContributions)) {
-        return 'Nothing changed, use space to select contribution types.'
+        return 'Nothing changed, use space to select contribution types.';
       }
       return true;
     }