diff --git a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
index 7fd0e2cb90..48d1a79b08 100644
--- a/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
+++ b/polygerrit-ui/app/elements/change/gr-file-list/gr-file-list.js
@@ -1263,7 +1263,6 @@ class GrFileList extends mixinBehaviors( [
         c, {__commentSide: threadEl.commentSide}
     ));
     flush();
-    return;
   }
 
   _handleEscKey(e) {
diff --git a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.js b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.js
index 8ff445b9d2..9f6d0507f5 100644
--- a/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.js
+++ b/polygerrit-ui/app/elements/core/gr-error-manager/gr-error-manager.js
@@ -200,7 +200,6 @@ class GrErrorManager extends mixinBehaviors( [
         showSignInButton: !isLoggedIn,
       });
     });
-    return;
   }
 
   _constructServerErrorMsg({errorText, status, statusText, url, trace, tip}) {