diff --git a/src/skins/vector/css/_components.scss b/src/skins/vector/css/_components.scss
index 51dd0ada..323c22e0 100644
--- a/src/skins/vector/css/_components.scss
+++ b/src/skins/vector/css/_components.scss
@@ -12,6 +12,7 @@
 @import "./matrix-react-sdk/structures/_UserSettings.scss";
 @import "./matrix-react-sdk/structures/login/_Login.scss";
 @import "./matrix-react-sdk/views/avatars/_BaseAvatar.scss";
+@import "./matrix-react-sdk/views/dialogs/_BugReportDialog.scss";
 @import "./matrix-react-sdk/views/dialogs/_ChatInviteDialog.scss";
 @import "./matrix-react-sdk/views/dialogs/_EncryptedEventDialog.scss";
 @import "./matrix-react-sdk/views/dialogs/_SetDisplayNameDialog.scss";
diff --git a/src/skins/vector/css/matrix-react-sdk/views/dialogs/_BugReportDialog.scss b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_BugReportDialog.scss
new file mode 100644
index 00000000..0f47e974
--- /dev/null
+++ b/src/skins/vector/css/matrix-react-sdk/views/dialogs/_BugReportDialog.scss
@@ -0,0 +1,20 @@
+/*
+Copyright 2017 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_BugReportDialog_input {
+    width: 100%;
+    box-sizing: border-box;
+}