diff --git a/README.md b/README.md
index da1fdc7..8e4d90b 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,13 @@
 
 Web app
 
+# Use
+
+python3 ./run.py
+
+# Install
+
+cd build-deb/
+make
+sudo apt install ./flaskapp.deb
+
diff --git a/build-deb/Makefile b/build-deb/Makefile
index fae7d0a..832b681 100644
--- a/build-deb/Makefile
+++ b/build-deb/Makefile
@@ -8,7 +8,10 @@ deb: man ../requirments.txt ../run.py ../flaskapp ../LICENSE
 	cp -r ../flaskapp/* flaskapp/var/flaskapp/flaskapp/
 	cp ../run.py flaskapp/var/flaskapp/
 	cp ../LICENSE flaskapp/var/flaskapp/
+	chmod -w luser/DEBIAN/*
+	chmod +w luser/DEBIAN/control
 	dpkg-deb --build flaskapp
+	chmod -w luser/DEBIAN/*
 clean:
 	rm -f flaskapp.deb
 	rm -f man/flaskapp.1
diff --git a/run.py b/run.py
index a64dc5f..26066e5 100755
--- a/run.py
+++ b/run.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 from flaskapp import app
 
 if __name__ == '__main__':