diff --git a/arch/install-config.sh b/arch/install-config.sh
index 95fb2b3..0f634d7 100755
--- a/arch/install-config.sh
+++ b/arch/install-config.sh
@@ -31,7 +31,7 @@ systemctl enable xrdp-sesman
 
 # Configure the installed XRDP ini files.
 # use vsock transport.
-sed -i_orig -e 's/use_vsock=false/use_vsock=true/g' /etc/xrdp/xrdp.ini
+sed -i_orig -e 's/port=3389/port=vsock:\/\/-1:3389/g' /etc/xrdp/xrdp.ini
 # use rdp security.
 sed -i_orig -e 's/security_layer=negotiate/security_layer=rdp/g' /etc/xrdp/xrdp.ini
 # remove encryption validation.