diff --git a/src/stlink-gui/stlink-gui.ui b/src/stlink-gui/stlink-gui.ui
index e954af3..d6d34fa 100644
--- a/src/stlink-gui/stlink-gui.ui
+++ b/src/stlink-gui/stlink-gui.ui
@@ -33,7 +33,8 @@
               <object class="GtkButton" id="flash_dialog_ok_button">
                 <property name="label">gtk-ok</property>
                 <property name="visible">True</property>
-                <property name="can_focus">False</property>
+                <property name="can_focus">True</property>
+                <property name="has_focus">True</property>
                 <property name="receives_default">True</property>
                 <property name="use_stock">True</property>
               </object>