diff --git a/ihatemoney/forms.py b/ihatemoney/forms.py
index 701e7c58..d0619aa1 100644
--- a/ihatemoney/forms.py
+++ b/ihatemoney/forms.py
@@ -15,6 +15,10 @@ import email_validator
 from ihatemoney.models import Project, Person
 from ihatemoney.utils import slugify
 
+def strip_filter(string):
+    if hasattr(string, 'strip'):
+        return string.strip()
+    return string
 
 def get_billform_for(project, set_default=True, **kwargs):
     """Return an instance of BillForm configured for a particular project.
@@ -149,7 +153,7 @@ class BillForm(FlaskForm):
 
 
 class MemberForm(FlaskForm):
-    name = StringField(_("Name"), validators=[Required()])
+    name = StringField(_("Name"), validators=[Required()], filters=[strip_filter,])
 
     weight_validators = [NumberRange(min=0.1, message=_("Weights should be positive"))]
     weight = CommaDecimalField(_("Weight"), default=1,
diff --git a/ihatemoney/tests/tests.py b/ihatemoney/tests/tests.py
index 6fbd6f93..eed2269c 100644
--- a/ihatemoney/tests/tests.py
+++ b/ihatemoney/tests/tests.py
@@ -604,6 +604,17 @@ class BudgetTestCase(IhatemoneyTestCase):
         balance = models.Project.query.get("raclette").balance
         self.assertEqual(set(balance.values()), set([6, -6]))
 
+
+    def test_trimmed_members(self):
+        self.post_project("raclette")
+
+        # add two times the same person (with a space at the end)
+        self.client.post("/raclette/members/add", data={'name': 'alexis'})
+        self.client.post("/raclette/members/add", data={'name': 'alexis '})
+        members = models.Project.query.get("raclette").members
+
+        self.assertEqual(len(members), 1)
+
     def test_weighted_members_list(self):
         self.post_project("raclette")
 
@@ -1212,7 +1223,6 @@ class APITestCase(IhatemoneyTestCase):
         self.assertEqual(False, json.loads(req.data.decode('utf-8'))["activated"])
 
         # re-activate the user
-
         req = self.client.put("/api/projects/raclette/members/1", data={
             "name": "Fred",
             "activated": True,