diff --git a/tools/traff_assessment_tool/trafficmodeinitdlg.ui b/tools/traff_assessment_tool/trafficmodeinitdlg.ui
index a7821ff6a..441d771c2 100644
--- a/tools/traff_assessment_tool/trafficmodeinitdlg.ui
+++ b/tools/traff_assessment_tool/trafficmodeinitdlg.ui
@@ -51,6 +51,9 @@
       <property name="text">
        <string>Ok</string>
       </property>
+      <property name="default">
+       <bool>true</bool>
+      </property>
      </widget>
     </item>
     <item row="0" column="1" colspan="2">