diff --git a/client/coral-embed-stream/src/CommentStream.js b/client/coral-embed-stream/src/CommentStream.js
index f5ac55db8..62dcee95e 100644
--- a/client/coral-embed-stream/src/CommentStream.js
+++ b/client/coral-embed-stream/src/CommentStream.js
@@ -84,8 +84,8 @@ class CommentStream extends Component {
 
     const rootItemId = this.props.items.assets && Object.keys(this.props.items.assets)[0];
     const rootItem = this.props.items.assets && this.props.items.assets[rootItemId];
-    const {loggedIn, user} = this.props.auth;
-    return <div>
+    const {loggedIn, user, showSignInDialog} = this.props.auth;
+    return <div className={showSignInDialog ? 'expandForSignin' : ''}>
       {
         rootItem
         ? <div>
diff --git a/client/coral-embed-stream/style/default.css b/client/coral-embed-stream/style/default.css
index 9ba329f98..174f3ef16 100644
--- a/client/coral-embed-stream/style/default.css
+++ b/client/coral-embed-stream/style/default.css
@@ -7,6 +7,10 @@ body {
   padding: 0px 0px 50px 0px;
 }
 
+.expandForSignin {
+  min-height: 550px;
+}
+
 button {
   padding: 5px 10px;
   margin: 5px;
diff --git a/npm-debug.log.2447565331 b/npm-debug.log.2447565331
new file mode 100644
index 000000000..e69de29bb