diff --git a/inc/class-tachyon.php b/inc/class-tachyon.php
index 5d1c32c..6afa5c2 100644
--- a/inc/class-tachyon.php
+++ b/inc/class-tachyon.php
@@ -27,6 +27,7 @@ class Tachyon {
 		'jpg',
 		'jpeg',
 		'png',
+		'webp',
 	];
 
 	/**