diff --git a/install-debian.sh b/install-debian.sh
index 615142e7783c8bd0d74019488277c472456da65e..9cf5b73061b1adeadeeea817eec24ba2c098e276 100755
--- a/install-debian.sh
+++ b/install-debian.sh
@@ -320,7 +320,7 @@ while [ $# -gt 0 ]; do
     install_basesw_os=1
     #install_basesw_python=0
     #install_fodproper=0
-  elif [ $# -ge 1 -a "$1" = "--basesw_python" ]; then 
+  elif [ $# -ge 1 -a \( "$1" = "--basesw_python" -o "$1" = "--python-update-only" \) ]; then 
     shift 1
     install_default_used=0