diff --git a/src/Parsers/MarkdownParser.php b/src/Parsers/MarkdownParser.php
index 90e76a47..cadbf7b4 100644
--- a/src/Parsers/MarkdownParser.php
+++ b/src/Parsers/MarkdownParser.php
@@ -18,7 +18,11 @@ class MarkdownParser extends Parsedown implements ParserInterface
     protected function inlineImage($excerpt)
     {
         $object = parent::inlineImage($excerpt);
-        $object['element']['attributes']['src'] = proxy_media_url($object['element']['attributes']['src']);
+
+        if (!empty($object['element']['attributes']['src']) && !is_local_url($object['element']['attributes']['src'])) {
+            $object['element']['attributes']['src'] = proxy_media_url($object['element']['attributes']['src']);
+        }
+
         return $object;
     }
 }