diff --git a/desktop/misc/lightdm/pspec.xml b/desktop/misc/lightdm/pspec.xml
index ecad1269ba..c892912d20 100644
--- a/desktop/misc/lightdm/pspec.xml
+++ b/desktop/misc/lightdm/pspec.xml
@@ -55,6 +55,7 @@
             <Path fileType="executable">/usr/bin</Path>
             <Path fileType="library">/usr/lib/liblightdm-gobject-1.so*</Path>
             <Path fileType="library">/usr/libexec</Path>
+            <Path fileType="library">/usr/lib/lightdm-guest-session</Path>
             <Path fileType="library">/usr/lib/tmpfiles.d</Path>
             <Path fileType="library">/usr/lib/girepository-1.0</Path>
             <Path fileType="data">/usr/share/accountsservice</Path>