diff --git a/ui/actions/nuxeo-download-button.js b/ui/actions/nuxeo-download-button.js
index 6736beaed..5a0cc59b0 100644
--- a/ui/actions/nuxeo-download-button.js
+++ b/ui/actions/nuxeo-download-button.js
@@ -110,6 +110,7 @@ import '../nuxeo-button-styles.js';
     ready() {
       super.ready();
       this.addEventListener('keydown', (event) => {
+        /* Prevent keypress to propagate to parent if key pressed is Enter */
         if (event.key === 'Enter') {
           event.stopPropagation();
         }
diff --git a/ui/actions/nuxeo-favorites-toggle-button.js b/ui/actions/nuxeo-favorites-toggle-button.js
index 348dacc3f..1367846b4 100644
--- a/ui/actions/nuxeo-favorites-toggle-button.js
+++ b/ui/actions/nuxeo-favorites-toggle-button.js
@@ -130,6 +130,7 @@ import '../nuxeo-button-styles.js';
       window.addEventListener('removed-from-favorites', this.removeFromFavoritesHandler);
       this.addEventListener('click', this._toggle);
       this.addEventListener('keydown', (event) => {
+        /* Prevent keypress to propagate to parent if key pressed is Enter */
         if (event.key === 'Enter') {
           event.stopPropagation();
         }