diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..63d810d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,29 @@
+# See https://help.github.com/ignore-files/ for more about ignoring files.
+
+# dependencies
+/build
+/dist
+*egg-info
+
+
+/node_modules
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+
+.DS_Store
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+package-lock*
+
+/__pycache__
+/app/__pycache__
+/app/commons/__pycache__
diff --git a/booking.py b/booking.py
index 572e651..1997b64 100644
--- a/booking.py
+++ b/booking.py
@@ -144,8 +144,7 @@ class Booking(Workflow, ModelSQL, ModelView):
     contact = fields.Char('Contact', states=STATES_PROCESSING)
     payment_term = fields.Many2One('account.invoice.payment_term',
         'Payment Term', states=STATES_PROCESSING)
-    booking_date = fields.DateTime('Booking Date', readonly=True,
-        states=STATES)
+    booking_date = fields.DateTime('Booking Date', readonly=False, states=STATES)
     person_num = fields.Integer('Person Number', states=STATES)
     group = fields.Boolean('Group', states=STATES)
     complementary = fields.Boolean('Complementary', states=STATES)