diff --git a/hc/accounts/forms.py b/hc/accounts/forms.py
index 6371c250..c1aca20e 100644
--- a/hc/accounts/forms.py
+++ b/hc/accounts/forms.py
@@ -39,7 +39,7 @@ class ChangeEmailForm(forms.Form):
     def clean_email(self):
         v = self.cleaned_data["email"]
         if User.objects.filter(email=v).exists():
-            raise forms.ValidationError("%s is not available" % v)
+            raise forms.ValidationError("%s is already registered" % v)
 
         return v
 
diff --git a/hc/accounts/tests/test_change_email.py b/hc/accounts/tests/test_change_email.py
index 523bb868..a5ad15eb 100644
--- a/hc/accounts/tests/test_change_email.py
+++ b/hc/accounts/tests/test_change_email.py
@@ -35,7 +35,7 @@ class ChangeEmailTestCase(BaseTestCase):
 
         payload = {"email": "bob@example.org"}
         r = self.client.post("/accounts/change_email/foo/", payload)
-        self.assertContains(r, "bob@example.org is not available")
+        self.assertContains(r, "bob@example.org is already registered")
 
         self.alice.refresh_from_db()
         self.assertEqual(self.alice.email, "alice@example.org")