diff --git a/tools/duckdns/install.sh b/tools/duckdns/install.sh
index 41b9673..52e8008 100755
--- a/tools/duckdns/install.sh
+++ b/tools/duckdns/install.sh
@@ -4,7 +4,7 @@
 
 thisdir="$( dirname "$(readlink -e -- "${BASH_SOURCE[0]}")")"
 
-cp -f .env.example .env
+cp -f "$thisdir/.env.example" "$thisdir/.env"
 
 cat <<EOF | sudo tee /etc/cron.d/duckdns && crontab -u "$(whoami)" /etc/cron.d/duckdns
 # ------------- Minute (0 - 59)
diff --git a/tools/duckdns/update.sh b/tools/duckdns/update.sh
index 81c41d5..8c0ae18 100755
--- a/tools/duckdns/update.sh
+++ b/tools/duckdns/update.sh
@@ -1,12 +1,14 @@
 #!/bin/bash
 # shellcheck disable=SC1091
 
-[ ! -f .env ] && {
+thisdir="$( dirname "$(readlink -e -- "${BASH_SOURCE[0]}")")"
+
+[ ! -f "$thisdir/.env" ] && {
     echo "ERROR: .env not exists"
     exit 1
 }
 
-source .env
+source "$thisdir/.env"
 
 [ -z "$DUCK_TOKEN" ] && {
     echo "ERROR: env var DUCK_TOKEN not specified"