diff --git a/devhelp.spec b/devhelp.spec
index dc6debe..2783c37 100644
--- a/devhelp.spec
+++ b/devhelp.spec
@@ -125,6 +125,7 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor >&/dev/null || :
 %{_datadir}/icons/hicolor/24x24/apps/devhelp.png
 %{_datadir}/icons/hicolor/32x32/apps/devhelp.png
 %{_datadir}/icons/hicolor/48x48/apps/devhelp.png
+%{_datadir}/icons/hicolor/256x256/apps/devhelp.png
 
 %{_libdir}/gedit/plugins/devhelp.*