diff --git a/cmd/gtk/assets/ui/main_window.ui b/cmd/gtk/assets/ui/main_window.ui
index 3e20cbf2d..2074884c1 100644
--- a/cmd/gtk/assets/ui/main_window.ui
+++ b/cmd/gtk/assets/ui/main_window.ui
@@ -5,7 +5,7 @@
   <object class="GtkApplicationWindow" id="id_main_window">
     <property name="can-focus">False</property>
     <property name="title" translatable="yes">Pactus GUI</property>
-    <property name="default-width">800</property>
+    <property name="default-width">880</property>
     <property name="default-height">440</property>
     <child>
       <object class="GtkBox">