diff --git a/app/src/components/Sidebar/Publish/Publish.tsx b/app/src/components/Sidebar/Publish/Publish.tsx
index 2ee9c4d..944ab8f 100644
--- a/app/src/components/Sidebar/Publish/Publish.tsx
+++ b/app/src/components/Sidebar/Publish/Publish.tsx
@@ -70,7 +70,7 @@ function Publish(props: Props) {
 
   return useMemo(
     () => (
-      <div style={{ flexGrow: 1 }} onKeyDown={handleSubmit}>
+      <div style={{ flexGrow: 1, width: '100%' }} onKeyDown={handleSubmit}>
         <TopicInput />
         <div style={{ width: '100%', display: 'block' }}>
           <EditorMode