diff --git a/src/Intervention/Image/Imagick/Encoder.php b/src/Intervention/Image/Imagick/Encoder.php
index 956e5fdd..df7b5b82 100644
--- a/src/Intervention/Image/Imagick/Encoder.php
+++ b/src/Intervention/Image/Imagick/Encoder.php
@@ -47,6 +47,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompression($compression);
         $imagick->setImageCompression($compression);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_PNG);
+
         return $imagick->getImagesBlob();
     }
 
@@ -66,6 +68,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompression($compression);
         $imagick->setImageCompression($compression);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_GIF);
+
         return $imagick->getImagesBlob();
     }
 
@@ -111,6 +115,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompressionQuality($this->quality);
         $imagick->setImageCompressionQuality($this->quality);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_TIFF_II);
+
         return $imagick->getImagesBlob();
     }
 
@@ -130,6 +136,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompression($compression);
         $imagick->setImageCompression($compression);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_BMP);
+
         return $imagick->getImagesBlob();
     }
 
@@ -149,6 +157,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompression($compression);
         $imagick->setImageCompression($compression);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_ICO);
+
         return $imagick->getImagesBlob();
     }
 
@@ -168,6 +178,8 @@ class Encoder extends AbstractEncoder
         $imagick->setCompression($compression);
         $imagick->setImageCompression($compression);
 
+        $this->image->mime = image_type_to_mime_type(IMAGETYPE_PSD);
+
         return $imagick->getImagesBlob();
     }