diff --git a/base/app/init.d/10-novnc.sh b/base/app/init.d/10-novnc.sh
index afa6d4c..4a70526 100755
--- a/base/app/init.d/10-novnc.sh
+++ b/base/app/init.d/10-novnc.sh
@@ -25,12 +25,11 @@ then
     unset _MYVNC_PROXYPATH
 elif [ ${MYVNC_PROXYPATH} ]
 then
-    _MYVNC_PROXYPATH=$(echo ${MYVNC_PROXYPATH%/} | sed "s|^.*/||")
+    _MYVNC_PROXYPATH=$(echo ${MYVNC_PROXYPATH} | sed "s|^/*||g;s|/*$||g;s|/*/|/|g")
     sed -i "/UI.initSetting/ s|websockify|${_MYVNC_PROXYPATH}/&|" /app/novnc/app/ui.js
 fi
 
 # Start NoVNC
 /app/novnc/utils/novnc_proxy \
-    --listen 6080 \
-    --vnc ${MYVNC_VNCSERVER_HOST:-localhost}:${MYVNC_VNCSERVER_PORT:-5900} \
+    --vnc ${MYVNC_VNCLISTEN_HOST:-localhost}:${MYVNC_VNCLISTEN_PORT:-5900} \
     --file-only &