diff --git a/src/sysprof/ui/sysprof-window.ui b/src/sysprof/ui/sysprof-window.ui
index 87158fe2..8973a3df 100644
--- a/src/sysprof/ui/sysprof-window.ui
+++ b/src/sysprof/ui/sysprof-window.ui
@@ -27,8 +27,9 @@
         <child>
           <object class="GtkButton" id="open_button">
             <property name="label" translatable="yes">_Open</property>
-            <property name="action_name">app.open-capture</property>
-            <property name="use_underline">true</property>
+            <property name="action-name">app.open-capture</property>
+            <property name="use-underline">true</property>
+            <property name="tooltip-text" translatable="yes">Open Recording… (Ctrl+O)</property>
             <property name="visible">true</property>
           </object>
           <packing>