diff --git a/js/src/modal.js b/js/src/modal.js
index 2ca56e7e2e92..12ab8bfd735c 100644
--- a/js/src/modal.js
+++ b/js/src/modal.js
@@ -85,7 +85,6 @@ const Modal = (($) => {
       this._isShown             = false
       this._isBodyOverflowing   = false
       this._ignoreBackdropClick = false
-      this._originalBodyPadding = 0
       this._scrollbarWidth      = 0
     }