diff --git a/customize.sh b/customize.sh
index ece127d..e7d749c 100644
--- a/customize.sh
+++ b/customize.sh
@@ -7,7 +7,7 @@ else
   mmm_exec() { true; }
 fi
 
-session_installer_supported=true
+session_installer_supported=false
 
 pm_install() {
     newretval=1