diff --git a/.env b/.env
index b15941c..7e803d0 100644
--- a/.env
+++ b/.env
@@ -1,4 +1,5 @@
 # WOL Manager Environment Configuration
 WOL_NETWORK_MODE=bridge
 WOL_EXTERNAL_PORT=5000
+FLASK_PORT=5000
 FLASK_DEBUG=true
\ No newline at end of file
diff --git a/.env.example b/.env.example
index 1f4b346..f0c3727 100644
--- a/.env.example
+++ b/.env.example
@@ -10,6 +10,9 @@ WOL_NETWORK_MODE=bridge
 # For Linux with host mode: this setting is ignored
 WOL_EXTERNAL_PORT=5000
 
+# Flask internal port (port on which Flask app runs inside container)
+FLASK_PORT=5000
+
 # Examples:
 # Windows Docker Desktop:
 # WOL_NETWORK_MODE=bridge
diff --git a/app/app.py b/app/app.py
index dbad33b..5f0e4a1 100644
--- a/app/app.py
+++ b/app/app.py
@@ -485,5 +485,7 @@ def trigger_windows_scan():
         })
 
 if __name__ == '__main__':
+    # Get port from environment variable or default to 5000
+    port = int(os.environ.get('FLASK_PORT', 5000))
     # Enable debug mode for development with hot reload
-    app.run(host='0.0.0.0', port=5000, debug=True, use_reloader=True)
\ No newline at end of file
+    app.run(host='0.0.0.0', port=port, debug=True, use_reloader=True)
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 27a7b9f..a2c68d4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,6 +15,7 @@ services:
       - PYTHONUNBUFFERED=1
       - WSL_INTEROP=${WSL_INTEROP}
       - FLASK_DEBUG=${FLASK_DEBUG:-false}
+      - FLASK_PORT=${FLASK_PORT:-5000}
     network_mode: "${WOL_NETWORK_MODE:-bridge}"
     privileged: true
     cap_add: