diff --git a/src/Imagick/Image.php b/src/Imagick/Image.php
index 6ad80607..995c099f 100644
--- a/src/Imagick/Image.php
+++ b/src/Imagick/Image.php
@@ -958,10 +958,11 @@ private function applyFastLinear(Linear $fill)
      * Sets colorspace and image type, assigns the palette.
      *
      * @param \Imagine\Image\Palette\PaletteInterface $palette
+     * @param bool $convert
      *
      * @throws \Imagine\Exception\InvalidArgumentException
      */
-    private function setColorspace(PaletteInterface $palette)
+    private function setColorspace(PaletteInterface $palette, $convert)
     {
         $typeMapping = array(
             // We use Matte variants to preserve alpha
@@ -973,24 +974,13 @@ private function setColorspace(PaletteInterface $palette)
             PaletteInterface::PALETTE_RGB => defined('\Imagick::IMGTYPE_TRUECOLORALPHA') ? \Imagick::IMGTYPE_TRUECOLORALPHA : (defined('\Imagick::IMGTYPE_TRUECOLORMATTE') ? \Imagick::IMGTYPE_TRUECOLORMATTE : 7),
             PaletteInterface::PALETTE_GRAYSCALE => defined('\Imagick::IMGTYPE_GRAYSCALEALPHA') ? \Imagick::IMGTYPE_GRAYSCALEALPHA : (defined('\Imagick::IMGTYPE_GRAYSCALEMATTE') ? \Imagick::IMGTYPE_GRAYSCALEMATTE : 3),
         );
-
         if (!isset(static::$colorspaceMapping[$palette->name()])) {
             throw new InvalidArgumentException(sprintf('The palette %s is not supported by Imagick driver', $palette->name()));
         }
-
-        $this->imagick->setType($typeMapping[$palette->name()]);
-        $this->imagick->setColorspace(static::$colorspaceMapping[$palette->name()]);
-        if ($this->imagick->getnumberimages() > 0 && defined('Imagick::ALPHACHANNEL_REMOVE') && defined('Imagick::ALPHACHANNEL_SET')) {
-            $originalImageIndex = $this->imagick->getiteratorindex();
-            foreach ($this->imagick as $frame) {
-                if ($palette->supportsAlpha()) {
-                    $frame->setimagealphachannel(\Imagick::ALPHACHANNEL_SET);
-                } else {
-                    $frame->setimagealphachannel(\Imagick::ALPHACHANNEL_REMOVE);
-                }
-            }
-            $this->imagick->setiteratorindex($originalImageIndex);
-        }
+        $typeID = $typeMapping[$palette->name()];
+        $colorspaceID = static::$colorspaceMapping[$palette->name()];
+        $this->imagick->setType($typeID);
+        $this->imagick->setcolorspace($colorspaceID);
         $this->palette = $palette;
     }