diff --git a/hc/accounts/models.py b/hc/accounts/models.py
index f68e3937..17b7ecbe 100644
--- a/hc/accounts/models.py
+++ b/hc/accounts/models.py
@@ -359,7 +359,7 @@ class Project(models.Model):
             return False
 
         role = Member.Role.REGULAR if rw else Member.Role.READONLY
-        Member.objects.create(user=user, project=self, rw=rw, role=role)
+        Member.objects.create(user=user, project=self, role=role)
         checks_url = reverse("hc-checks", args=[self.code])
         user.profile.send_instant_login_link(self, redirect_url=checks_url)
         return True
@@ -427,7 +427,6 @@ class Member(models.Model):
     user = models.ForeignKey(User, models.CASCADE, related_name="memberships")
     project = models.ForeignKey(Project, models.CASCADE)
     transfer_request_date = models.DateTimeField(null=True, blank=True)
-    rw = models.BooleanField(default=True, null=True)
     role = models.CharField(max_length=1, default=Role.REGULAR, choices=Role.choices)
 
     class Meta:
diff --git a/hc/accounts/tests/test_project.py b/hc/accounts/tests/test_project.py
index 46e5b3ff..9f9d3fd6 100644
--- a/hc/accounts/tests/test_project.py
+++ b/hc/accounts/tests/test_project.py
@@ -78,7 +78,6 @@ class ProjectTestCase(BaseTestCase):
         )
 
         # The read-write flag should be set
-        self.assertTrue(member.rw)
         self.assertEqual(member.role, member.Role.REGULAR)
 
         # The new user should not have their own project
@@ -99,7 +98,6 @@ class ProjectTestCase(BaseTestCase):
             project=self.project, user__email="frank@example.org"
         )
 
-        self.assertFalse(member.rw)
         self.assertEqual(member.role, member.Role.READONLY)
 
     def test_it_adds_member_from_another_team(self):