diff --git a/data/org.gnome.shell.gschema.xml.in.in b/data/org.gnome.shell.gschema.xml.in.in
index d6ee46920..55064ad7d 100644
--- a/data/org.gnome.shell.gschema.xml.in.in
+++ b/data/org.gnome.shell.gschema.xml.in.in
@@ -50,7 +50,7 @@
       <_summary>History for command (Alt-F2) dialog</_summary>
     </key>
     <key name="looking-glass-history" type="as">
-      <default>[]</default>
+      <default><!-- Translators: looking glass is a debugger and inspector tool, see https://live.gnome.org/GnomeShell/LookingGlass -->[]</default>
       <_summary>History for the looking glass dialog</_summary>
     </key>
     <key name="always-show-log-out" type="b">