diff --git a/src/libsysprof-ui/sysprof-memprof-page.ui b/src/libsysprof-ui/sysprof-memprof-page.ui
index 30a98348..338da759 100644
--- a/src/libsysprof-ui/sysprof-memprof-page.ui
+++ b/src/libsysprof-ui/sysprof-memprof-page.ui
@@ -11,6 +11,8 @@
               <object class="GtkBox">
                 <property name="margin-top">6</property>
                 <property name="margin-bottom">6</property>
+                <property name="margin-start">6</property>
+                <property name="margin-end">6</property>
                 <property name="orientation">horizontal</property>
                 <property name="homogeneous">true</property>
                 <style>