diff --git a/debian/postinst b/debian/postinst
index b01c8839..aed4da3f 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -73,7 +73,7 @@ case "$1" in
     test -e /proxmox_install_mode && exit 0;
 
     # the ExecStartPre doesn't triggers on service reload, so just in case
-    /usr/bin/pvecm updatecerts --silent || true
+    pvecm updatecerts --silent || true
 
     deb-systemd-invoke reload-or-try-restart pvedaemon.service
     deb-systemd-invoke reload-or-try-restart pvestatd.service