diff --git a/webui.sh b/webui.sh
index 9ec14168..5b39244b 100755
--- a/webui.sh
+++ b/webui.sh
@@ -5,7 +5,7 @@
 #################################################
 
 usevenv=1
-if [[ $@ == *"--novenv"* ]]; then
+if [[ $venv_dir == "-" ]]; then
   usevenv=0
 fi