diff --git a/addons/web/static/src/legacy/js/widgets/name_and_signature.js b/addons/web/static/src/legacy/js/widgets/name_and_signature.js
index 04e2975208c..78cd845999b 100644
--- a/addons/web/static/src/legacy/js/widgets/name_and_signature.js
+++ b/addons/web/static/src/legacy/js/widgets/name_and_signature.js
@@ -579,6 +579,7 @@ var NameAndSignature = Widget.extend({
      */
     _onClickSignDrawButton: function (ev) {
         ev.preventDefault();
+        this.$signatureField.jSignature('reset'); // clears signature when clicking on draw
         this.setMode('draw');
     },
     /**