diff --git a/src/Intervention/Image/AbstractEncoder.php b/src/Intervention/Image/AbstractEncoder.php
index 77544653..16020805 100644
--- a/src/Intervention/Image/AbstractEncoder.php
+++ b/src/Intervention/Image/AbstractEncoder.php
@@ -148,7 +148,6 @@ abstract class AbstractEncoder
                 $this->result = $this->processTiff();
                 break;
 
-            case 'bmp':
             case 'bmp':
             case 'ms-bmp':
             case 'x-bitmap':
@@ -192,6 +191,7 @@ abstract class AbstractEncoder
 
             case 'heic':
             case 'image/heic':
+            case 'image/heif':
                 $this->result = $this->processHeic();
                 break;