diff --git a/src/Illuminate/Database/Query/Builder.php b/src/Illuminate/Database/Query/Builder.php
index e3732bf500c..7680be44a55 100755
--- a/src/Illuminate/Database/Query/Builder.php
+++ b/src/Illuminate/Database/Query/Builder.php
@@ -825,24 +825,15 @@ public function whereIn($column, $values, $boolean = 'and', $not = false)
     {
         $type = $not ? 'NotIn' : 'In';
 
-        if ($values instanceof EloquentBuilder) {
-            $values = $values->getQuery();
-        }
-
         // If the value is a query builder instance we will assume the developer wants to
         // look for any values that exists within this given query. So we will add the
         // query accordingly so that this query is properly executed when it is run.
-        if ($values instanceof self) {
-            return $this->whereInExistingQuery(
-                $column, $values, $boolean, $not
-            );
-        }
+        if ($values instanceof self || $values instanceof EloquentBuilder || $values instanceof Closure) {
+            [$query, $bindings] = $this->createSub($values);
+
+            $values = [new Expression($query)];
 
-        // If the value of the where in clause is actually a Closure, we will assume that
-        // the developer is using a full sub-select for this "in" statement, and will
-        // execute those Closures, then we can re-construct the entire sub-selects.
-        if ($values instanceof Closure) {
-            return $this->whereInSub($column, $values, $boolean, $not);
+            $this->addBinding($bindings, 'where');
         }
 
         // Next, if the value is Arrayable we need to cast it to its raw array form so we
@@ -857,11 +848,7 @@ public function whereIn($column, $values, $boolean = 'and', $not = false)
         // Finally we'll add a binding for each values unless that value is an expression
         // in which case we will just skip over it since it will be the query as a raw
         // string and not as a parameterized place-holder to be replaced by the PDO.
-        foreach ($values as $value) {
-            if (! $value instanceof Expression) {
-                $this->addBinding($value, 'where');
-            }
-        }
+        $this->addBinding($this->cleanBindings($values), 'where');
 
         return $this;
     }
@@ -903,51 +890,6 @@ public function orWhereNotIn($column, $values)
         return $this->whereNotIn($column, $values, 'or');
     }
 
-    /**
-     * Add a where in with a sub-select to the query.
-     *
-     * @param  string   $column
-     * @param  \Closure $callback
-     * @param  string   $boolean
-     * @param  bool     $not
-     * @return $this
-     */
-    protected function whereInSub($column, Closure $callback, $boolean, $not)
-    {
-        $type = $not ? 'NotInSub' : 'InSub';
-
-        // To create the exists sub-select, we will actually create a query and call the
-        // provided callback with the query so the developer may set any of the query
-        // conditions they want for the in clause, then we'll put it in this array.
-        call_user_func($callback, $query = $this->forSubQuery());
-
-        $this->wheres[] = compact('type', 'column', 'query', 'boolean');
-
-        $this->addBinding($query->getBindings(), 'where');
-
-        return $this;
-    }
-
-    /**
-     * Add an external sub-select to the query.
-     *
-     * @param  string   $column
-     * @param  \Illuminate\Database\Query\Builder|static  $query
-     * @param  string   $boolean
-     * @param  bool     $not
-     * @return $this
-     */
-    protected function whereInExistingQuery($column, $query, $boolean, $not)
-    {
-        $type = $not ? 'NotInSub' : 'InSub';
-
-        $this->wheres[] = compact('type', 'column', 'query', 'boolean');
-
-        $this->addBinding($query->getBindings(), 'where');
-
-        return $this;
-    }
-
     /**
      * Add a "where null" clause to the query.
      *
diff --git a/src/Illuminate/Database/Query/Grammars/Grammar.php b/src/Illuminate/Database/Query/Grammars/Grammar.php
index 27367839515..53c93d27f39 100755
--- a/src/Illuminate/Database/Query/Grammars/Grammar.php
+++ b/src/Illuminate/Database/Query/Grammars/Grammar.php
@@ -273,30 +273,6 @@ protected function whereNotIn(Builder $query, $where)
         return '1 = 1';
     }
 
-    /**
-     * Compile a where in sub-select clause.
-     *
-     * @param  \Illuminate\Database\Query\Builder  $query
-     * @param  array  $where
-     * @return string
-     */
-    protected function whereInSub(Builder $query, $where)
-    {
-        return $this->wrap($where['column']).' in ('.$this->compileSelect($where['query']).')';
-    }
-
-    /**
-     * Compile a where not in sub-select clause.
-     *
-     * @param  \Illuminate\Database\Query\Builder  $query
-     * @param  array  $where
-     * @return string
-     */
-    protected function whereNotInSub(Builder $query, $where)
-    {
-        return $this->wrap($where['column']).' not in ('.$this->compileSelect($where['query']).')';
-    }
-
     /**
      * Compile a "where null" clause.
      *
diff --git a/src/Illuminate/Database/Query/JoinClause.php b/src/Illuminate/Database/Query/JoinClause.php
index 4b32df29e99..267854e74df 100755
--- a/src/Illuminate/Database/Query/JoinClause.php
+++ b/src/Illuminate/Database/Query/JoinClause.php
@@ -56,7 +56,7 @@ public function __construct(Builder $parentQuery, $type, $table)
      *
      * will produce the following SQL:
      *
-     * on `contacts`.`user_id` = `users`.`id`  and `contacts`.`info_id` = `info`.`id`
+     * on `contacts`.`user_id` = `users`.`id` and `contacts`.`info_id` = `info`.`id`
      *
      * @param  \Closure|string  $first
      * @param  string|null  $operator
diff --git a/tests/Database/DatabaseEloquentBuilderTest.php b/tests/Database/DatabaseEloquentBuilderTest.php
index ba0ee0e14f6..16f07c18a92 100755
--- a/tests/Database/DatabaseEloquentBuilderTest.php
+++ b/tests/Database/DatabaseEloquentBuilderTest.php
@@ -989,6 +989,15 @@ public function testWhereKeyNotMethodWithCollection()
         $builder->whereKeyNot($collection);
     }
 
+    public function testWhereIn()
+    {
+        $model = new EloquentBuilderTestNestedStub;
+        $this->mockConnectionForModel($model, '');
+        $query = $model->newQuery()->withoutGlobalScopes()->whereIn('foo', $model->newQuery()->select('id'));
+        $expected = 'select * from "table" where "foo" in (select "id" from "table" where "table"."deleted_at" is null)';
+        $this->assertEquals($expected, $query->toSql());
+    }
+
     public function testLatestWithoutColumnWithCreatedAt()
     {
         $model = $this->getMockModel();