diff --git a/src/FFMpeg/Format/Video/Resizable.php b/src/FFMpeg/Format/Video/Resizable.php
index 63289d6..aabedd9 100644
--- a/src/FFMpeg/Format/Video/Resizable.php
+++ b/src/FFMpeg/Format/Video/Resizable.php
@@ -33,4 +33,6 @@ interface Resizable extends VideoInterface
      * @return Dimension A dimension
      */
     public function getComputedDimensions($originalWidth, $originalHeight);
+
+    public function getModulus();
 }