diff --git a/src/Illuminate/Container/BoundMethod.php b/src/Illuminate/Container/BoundMethod.php
index e64ae960e7c7..e10edd5c7d4a 100644
--- a/src/Illuminate/Container/BoundMethod.php
+++ b/src/Illuminate/Container/BoundMethod.php
@@ -116,7 +116,7 @@ protected static function getMethodDependencies($container, $callback, array $pa
             static::addDependencyForCallParameter($container, $parameter, $parameters, $dependencies);
         }
 
-        return $parameters + $dependencies;
+        return array_merge($dependencies, $parameters);
     }
 
     /**
@@ -162,8 +162,6 @@ protected static function addDependencyForCallParameter($container, $parameter,
             $dependencies[] = $container->make($parameter->getClass()->name);
         } elseif ($parameter->isDefaultValueAvailable()) {
             $dependencies[] = $parameter->getDefaultValue();
-        } else {
-            $dependencies[] = null;
         }
     }
 
diff --git a/tests/Container/ContainerTest.php b/tests/Container/ContainerTest.php
index d54d71dc000b..07ba41ee36ee 100755
--- a/tests/Container/ContainerTest.php
+++ b/tests/Container/ContainerTest.php
@@ -516,77 +516,6 @@ public function testCallWithDependencies()
         $this->assertEquals('taylor', $result[1]);
     }
 
-    public function testWithDefaultParametersIndexedArraySyntax()
-    {
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['foo', 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['foo', 'bar', 'baz']);
-
-        $this->assertEquals(['foo', 'bar', 'baz'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty');
-
-        $this->assertEquals(['default a', 'default b', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['foo', 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['foo']);
-
-        $this->assertEquals(['foo', 'default b', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyOnlyC', ['foo', 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@noDefault', ['foo', 'bar', 'baz']);
-
-        $this->assertEquals(['foo', 'bar', 'baz'], $result);
-    }
-
-    public function testWithDefaultParametersAssociativeSyntax()
-    {
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['a' => 'foo', 'b' => 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['a' => 'foo', 'b' => 'bar', 'c' => 'baz']);
-
-        $this->assertEquals(['foo', 'bar', 'baz'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['a' => 'foo', 'b' => 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['a' => 'foo']);
-
-        $this->assertEquals(['foo', 'default b', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyOnlyC', ['a' => 'foo', 'b' => 'bar']);
-
-        $this->assertEquals(['foo', 'bar', 'default c'], $result);
-
-        $container = new Container;
-        $result = $container->call(ContainerTestDefaultyParams::class.'@noDefault', ['a' => 'foo', 'b' => 'bar', 'c' => 'baz']);
-
-        $this->assertEquals(['foo', 'bar', 'baz'], $result);
-    }
-
     /**
      * @expectedException \ReflectionException
      * @expectedExceptionMessage Function ContainerTestCallStub() does not exist
@@ -1342,26 +1271,3 @@ public function __construct()
         static::$instantiations++;
     }
 }
-
-class ContainerTestDefaultyParams
-{
-    public function defaulty($a = 'default a', $b = 'default b', $c = 'default c')
-    {
-        return func_get_args();
-    }
-
-    public function defaultyBandC($a, $b = 'default b', $c = 'default c')
-    {
-        return func_get_args();
-    }
-
-    public function defaultyOnlyC($a, $b, $c = 'default c')
-    {
-        return func_get_args();
-    }
-
-    public function noDefault($a, $b, $c)
-    {
-        return func_get_args();
-    }
-}