diff --git a/simgear/package/Install.cxx b/simgear/package/Install.cxx
index 659511ff..c50e31d9 100644
--- a/simgear/package/Install.cxx
+++ b/simgear/package/Install.cxx
@@ -317,6 +317,7 @@ void Install::uninstall()
 {
     Dir d(m_path);
     d.remove(true);
+    m_package->catalog()->unregisterInstall(this);
 }
 
 //------------------------------------------------------------------------------