diff --git a/src/infrastructure/markup/rule/PhabricatorRemarkupRuleImageMacro.php b/src/infrastructure/markup/rule/PhabricatorRemarkupRuleImageMacro.php
index 796b408828..4fb3bfb5fc 100644
--- a/src/infrastructure/markup/rule/PhabricatorRemarkupRuleImageMacro.php
+++ b/src/infrastructure/markup/rule/PhabricatorRemarkupRuleImageMacro.php
@@ -34,7 +34,7 @@ final class PhabricatorRemarkupRuleImageMacro
       if ($file) {
         $src_uri = $file->getBestURI();
         $file_data = $file->getMetadata();
-        $height = idx($file_data,PhabricatorFile::METADATA_IMAGE_HEIGHT);
+        $height = idx($file_data, PhabricatorFile::METADATA_IMAGE_HEIGHT);
         $width = idx($file_data, PhabricatorFile::METADATA_IMAGE_WIDTH);
         if ($height && $width) {
           $style = sprintf(