diff --git a/install.sh b/install.sh
index 49dcd99..8a8272d 100644
--- a/install.sh
+++ b/install.sh
@@ -48,9 +48,11 @@ fi
 # shellcheck disable=2034,2059,2164
 true
 SCRIPT_NAME="Install script"
+export SCRIPT_NAME
 # shellcheck source=lib.sh
 source <(curl -sL https://raw.githubusercontent.com/rustdesk/rustdesk-server-pro/main/lib.sh)
 # see https://github.com/koalaman/shellcheck/wiki/Directive
+unset SCRIPT_NAME
 
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