diff --git a/retroshare-gui/src/gui/chat/ChatLobbyDialog.ui b/retroshare-gui/src/gui/chat/ChatLobbyDialog.ui
index 73b23ae8f..e9a176437 100644
--- a/retroshare-gui/src/gui/chat/ChatLobbyDialog.ui
+++ b/retroshare-gui/src/gui/chat/ChatLobbyDialog.ui
@@ -52,6 +52,12 @@
         <height>0</height>
        </size>
       </property>
+      <property name="maximumSize">
+       <size>
+        <width>140</width>
+        <height>16777215</height>
+       </size>
+      </property>
       <layout class="QVBoxLayout" name="verticalLayout_2">
        <property name="leftMargin">
         <number>0</number>
@@ -79,6 +85,12 @@
            <height>0</height>
           </size>
          </property>
+         <property name="maximumSize">
+          <size>
+           <width>140</width>
+           <height>16777215</height>
+          </size>
+         </property>
          <property name="contextMenuPolicy">
           <enum>Qt::CustomContextMenu</enum>
          </property>