diff --git a/src/utils/index.js b/src/utils/index.js
index 5e5c26c..67ee62a 100644
--- a/src/utils/index.js
+++ b/src/utils/index.js
@@ -18,7 +18,7 @@ var isArray = function isArray(arr) {
 
 var isInArray = function isInArray(arr, item) {
 
-  return ~arr.indexOf(item) !== -1;
+  return ~arr.indexOf(item) !== 0;
 }
 
 var removeFromArray = function removeFromArray(arr, item) {
@@ -87,4 +87,4 @@ module.exports = {
   ARRRAY_REGEX: ARRRAY_REGEX,
   STRING_REGEX: STRING_REGEX,
   PluginError: PluginError
-}
\ No newline at end of file
+}