diff --git a/app/src/mobile/util/menu.ts b/app/src/mobile/util/menu.ts
index 00539eb75..bba9a5e81 100644
--- a/app/src/mobile/util/menu.ts
+++ b/app/src/mobile/util/menu.ts
@@ -100,7 +100,7 @@ const genWorkspace = (workspaceDirElement: Element) => {
     fetchPost("/api/system/listWorkspaceDirs", {}, (response) => {
         let html = "";
         response.data.forEach((item: string) => {
-            html += `<li data-path="${item}" class="b3-list-item${window.siyuan.config.system.workspaceDir === item ? " b3-list-item--focus" : ""}">
+            html += `<li data-path="${item}" class="b3-list-item b3-list-item--narrow${window.siyuan.config.system.workspaceDir === item ? " b3-list-item--focus" : ""}">
     <span class="b3-list-item__text">${pathPosix().basename(item)}</span>
     <span data-type="remove" class="b3-list-item__action">
         <svg><use xlink:href="#iconTrashcan"></use></svg>