diff --git a/type/__netbox/gencode-remote b/type/__netbox/gencode-remote
index 1ef78cd..07b0fcf 100755
--- a/type/__netbox/gencode-remote
+++ b/type/__netbox/gencode-remote
@@ -66,12 +66,16 @@ ln -fs /opt/netbox/cdist/ldap_config.py '$install_dir/netbox/ldap_config.py'
 virtualenv -p python3 /opt/netbox/venv
 
 # Uninstall packages not required anymore
-# if versions not shortend, they will be ignored by pip, but not by comm
+# if versions not be shortend, they will be ignored by pip, but not by comm
 # all of this could be done with grep, too, but it's still must be shortend with awk
 awk -F== '{print $1}' '/opt/netbox/requirements.txt' | sort > "\$tmpdir/curr-reqs.txt"
 awk -F== '{print $1}' '/opt/netbox/old-requirements.txt' | sort > "\$tmpdir/old-reqs.txt"
-comm -23 "\$tmpdir/old-reqs.txt" "\$tmpdir/curr-reqs.txt" \
-    | xargs /opt/netbox/venv/bin/pip3 uninstall -qy
+comm -23 "\$tmpdir/old-reqs.txt" "\$tmpdir/curr-reqs.txt" > "\$tmpdir/pip-uninstall.txt"
+
+# only uninstall if something is available (to avoid errors cause of this)
+if [ -s "\$tmpdir/pip-uninstall.txt" ]; then
+    /opt/netbox/venv/bin/pip3 uninstall -qy -r "\$tmpdir/pip-uninstall.txt"
+fi
 
 # Install python dependencies.
 #  avoid gunicorn, because it will be done in an other type
@@ -86,6 +90,7 @@ EOF
     fi
 
     cat << EOF
+
 # Set final permissions.
 chown -R netbox /opt/netbox