diff --git a/src/Intervention/Image/Imagick/Commands/OpacityCommand.php b/src/Intervention/Image/Imagick/Commands/OpacityCommand.php
index 994cd1b5..a498e1a5 100644
--- a/src/Intervention/Image/Imagick/Commands/OpacityCommand.php
+++ b/src/Intervention/Image/Imagick/Commands/OpacityCommand.php
@@ -13,7 +13,9 @@ class OpacityCommand extends \Intervention\Image\Commands\AbstractCommand
     public function execute($image)
     {
         $transparency = $this->argument(0)->between(0, 100)->required()->value();
+        
+        $transparency = $transparency > 0 ? (100 / $transparency) : 1000;
 
-        return $image->getCore()->setImageOpacity($transparency / 100);
+        return $image->getCore()->evaluateImage(\Imagick::EVALUATE_DIVIDE, $transparency, \Imagick::CHANNEL_ALPHA);
     }
 }
diff --git a/tests/GdSystemTest.php b/tests/GdSystemTest.php
index 5fb709b7..2560d4ef 100644
--- a/tests/GdSystemTest.php
+++ b/tests/GdSystemTest.php
@@ -827,6 +827,7 @@ class GdSystemTest extends PHPUnit_Framework_TestCase
         $this->assertEquals($checkColor[1], 81);
         $this->assertEquals($checkColor[2], 96);
         $this->assertEquals($checkColor[3], 0.5);
+        $this->assertTransparentPosition($img, 0, 11);
     }
 
     public function testMaskImage()
diff --git a/tests/ImagickSystemTest.php b/tests/ImagickSystemTest.php
index af686ceb..d782e15d 100644
--- a/tests/ImagickSystemTest.php
+++ b/tests/ImagickSystemTest.php
@@ -828,6 +828,7 @@ class ImagickSystemTest extends PHPUnit_Framework_TestCase
         $this->assertEquals($checkColor[1], 81);
         $this->assertEquals($checkColor[2], 96);
         $this->assertEquals($checkColor[3], 0.5);
+        $this->assertTransparentPosition($img, 0, 11);
     }
 
     public function testMaskImage()
diff --git a/tests/OpacityCommandTest.php b/tests/OpacityCommandTest.php
index c1d7153e..9fdf7a98 100644
--- a/tests/OpacityCommandTest.php
+++ b/tests/OpacityCommandTest.php
@@ -33,7 +33,7 @@ class OpacityCommandTest extends PHPUnit_Framework_TestCase
     public function testImagick()
     {
         $imagick = Mockery::mock('Imagick');
-        $imagick->shouldReceive('setimageopacity')->with(0.5)->andReturn(true);
+        $imagick->shouldReceive('evaluateimage')->with(\Imagick::EVALUATE_DIVIDE, 2, \Imagick::CHANNEL_ALPHA)->andReturn(true);
         $image = Mockery::mock('Intervention\Image\Image');
         $image->shouldReceive('getCore')->once()->andReturn($imagick);
         $command = new OpacityImagick(array(50));