diff --git a/update.sh b/update.sh
index 8b90cb9..cc2e7b5 100644
--- a/update.sh
+++ b/update.sh
@@ -6,10 +6,10 @@
 set -e
 
 # Config
-APP_DIR="/opt/promdata-panel"
 SERVICE_NAME="promdatapanel"
+DEFAULT_APP_DIR="/opt/promdata-panel"
 
-# 1. Colors for logs
+# 1. Colors & Banner
 GREEN='\033[0;32m'
 BLUE='\033[0;34m'
 RED='\033[0;31m'
@@ -17,16 +17,34 @@ NC='\033[0m' # No Color
 
 echo -e "${BLUE}=== Starting PromdataPanel Update ===${NC}"
 
-# Detect if we're in the app directory
-if [ ! -d ".git" ]; then
-    if [ -d "$APP_DIR/.git" ]; then
-        cd "$APP_DIR"
-    else
-        echo -e "${RED}Error: Not in a git repository or $APP_DIR. Please run this from the app root.${NC}"
-        exit 1
+# 2. Detect APP_DIR automatically from systemd service
+if systemctl list-unit-files | grep -q "^$SERVICE_NAME.service"; then
+    echo "Detecting application directory from systemd service..."
+    # Get WorkingDirectory from systemd (using env to handle it safely)
+    SERVICE_DIR=$(systemctl show -p WorkingDirectory "$SERVICE_NAME" | cut -d= -f2-)
+    if [ -n "$SERVICE_DIR" ] && [ -d "$SERVICE_DIR" ]; then
+        APP_DIR="$SERVICE_DIR"
     fi
 fi
 
+# Fallback 1: Current directory if it contains package.json
+if [ -z "$APP_DIR" ]; then
+    if [ -f "package.json" ]; then
+        APP_DIR=$(pwd)
+    else
+        APP_DIR="$DEFAULT_APP_DIR"
+    fi
+fi
+
+echo -e "${BLUE}Application directory: $APP_DIR${NC}"
+
+if [ ! -d "$APP_DIR" ]; then
+    echo -e "${RED}Error: Could not find application directory at $APP_DIR. Check if you installed it correctly.${NC}"
+    exit 1
+fi
+
+cd "$APP_DIR"
+
 # 2. Update logic
 if [ -d ".git" ]; then
     echo -e "${BLUE}Git repository detected. Pulling latest code...${NC}"