diff --git a/includes/EmailFormatter.php b/includes/EmailFormatter.php
index 8fdb07096..45b6a4320 100644
--- a/includes/EmailFormatter.php
+++ b/includes/EmailFormatter.php
@@ -192,8 +192,7 @@ abstract class EchoEmailMode {
 			$iconUrl = "$wgExtensionAssetsPath/$path";
 		}
 
-		// Use http for image path, there is no need for https
-		return wfExpandUrl( $iconUrl, PROTO_HTTP );
+		return wfExpandUrl( $iconUrl, PROTO_CANONICAL );
 	}
 
 	/**