diff --git a/src/Illuminate/Collections/Collection.php b/src/Illuminate/Collections/Collection.php
index 0eae5e9dd938..3ad5e13ddcf2 100644
--- a/src/Illuminate/Collections/Collection.php
+++ b/src/Illuminate/Collections/Collection.php
@@ -177,14 +177,14 @@ public function contains($key, $operator = null, $value = null)
     }
 
     /**
-     * Determine if an item is missing in the collection.
+     * Determine if an item is not contained in the collection.
      *
      * @param  mixed  $key
      * @param  mixed  $operator
      * @param  mixed  $value
      * @return bool
      */
-    public function missing($key, $operator = null, $value = null)
+    public function doesntContain($key, $operator = null, $value = null)
     {
         return ! $this->contains($key, $operator, $value);
     }
diff --git a/src/Illuminate/Collections/LazyCollection.php b/src/Illuminate/Collections/LazyCollection.php
index 9688e755447a..00fd4ba0df1f 100644
--- a/src/Illuminate/Collections/LazyCollection.php
+++ b/src/Illuminate/Collections/LazyCollection.php
@@ -206,14 +206,14 @@ public function contains($key, $operator = null, $value = null)
     }
 
     /**
-     * Determine if an item is missing in the enumerable.
+     * Determine if an item is not contained in the enumerable.
      *
      * @param  mixed  $key
      * @param  mixed  $operator
      * @param  mixed  $value
      * @return bool
      */
-    public function missing($key, $operator = null, $value = null)
+    public function doesntContain($key, $operator = null, $value = null)
     {
         return ! $this->contains($key, $operator, $value);
     }