diff --git a/99app-recommender b/99app-recommender
index 40eed3d..e3f279e 100644
--- a/99app-recommender
+++ b/99app-recommender
@@ -1,2 +1,4 @@
 DPkg::Post-Invoke {"apprec-apt --post-invoke";};
 DPkg::Pre-Install-Pkgs {"apprec-apt --pre-install-pkgs";};
+
+APT::Update::Post-Invoke-Success {"update-apt-xapian-index";};