diff --git a/install/alpine-adguard-install.sh b/install/alpine-adguard-install.sh
index 76800516..227a7ddc 100644
--- a/install/alpine-adguard-install.sh
+++ b/install/alpine-adguard-install.sh
@@ -5,7 +5,7 @@
 # License: MIT
 # https://github.com/tteck/Proxmox/raw/main/LICENSE
 
-. /dev/stdin <<< "$FUNCTIONS_FILE_PATH"
+echo "$FUNCTIONS_FILE_PATH" | . /dev/stdin
 color
 verb_ip6
 catch_errors