diff --git a/src/components/left/settings/folders/SettingsFoldersChatsPicker.tsx b/src/components/left/settings/folders/SettingsFoldersChatsPicker.tsx
index 492a76eb3..fd1d6ac7a 100644
--- a/src/components/left/settings/folders/SettingsFoldersChatsPicker.tsx
+++ b/src/components/left/settings/folders/SettingsFoldersChatsPicker.tsx
@@ -197,16 +197,16 @@ const SettingsFoldersChatsPicker: FC<OwnProps & StateProps> = ({
         onLoadMore={getMore}
       >
         {(!viewportIds || !viewportIds.length || viewportIds.includes(chatIds[0])) && (
-          <>
-            <h4 key="header1" className="settings-item-header" dir={lang.isRtl ? 'rtl' : undefined}>
+          <div key="header">
+            <h4 className="settings-item-header" dir={lang.isRtl ? 'rtl' : undefined}>
               {lang('FilterChatTypes')}
             </h4>
             {chatTypes.map(renderChatType)}
-            <div key="divider" className="picker-list-divider" />
-            <h4 key="header2" className="settings-item-header" dir={lang.isRtl ? 'rtl' : undefined}>
+            <div className="picker-list-divider" />
+            <h4 className="settings-item-header" dir={lang.isRtl ? 'rtl' : undefined}>
               {lang('FilterChats')}
             </h4>
-          </>
+          </div>
         )}
 
         {viewportIds?.length ? (
diff --git a/src/lib/teact/teact-dom.ts b/src/lib/teact/teact-dom.ts
index 205852a34..8d287191d 100644
--- a/src/lib/teact/teact-dom.ts
+++ b/src/lib/teact/teact-dom.ts
@@ -409,7 +409,7 @@ function renderChildren(
 function renderFastListChildren($current: VirtualElementParent, $new: VirtualElementParent, currentEl: HTMLElement) {
   const newKeys = new Set(
     $new.children.map(($newChild) => {
-      const key = 'props' in $newChild && $newChild.props.key;
+      const key = 'props' in $newChild ? $newChild.props.key : undefined;
 
       if (DEBUG && isParentElement($newChild)) {
         // eslint-disable-next-line no-null/no-null