diff --git a/taiga/projects/models.py b/taiga/projects/models.py
index e1e0ea8b..8df7ac37 100644
--- a/taiga/projects/models.py
+++ b/taiga/projects/models.py
@@ -344,9 +344,11 @@ class UserStoryStatus(models.Model):
         return self.name
 
     def save(self, *args, **kwargs):
-        if not self.slug:
-            self.slug = slugify_uniquely_for_queryset(self.name, self.project.us_statuses)
+        qs = self.project.us_statuses
+        if self.id:
+            qs = qs.exclude(id=self.id)
 
+        self.slug = slugify_uniquely_for_queryset(self.name, qs)
         return super().save(*args, **kwargs)
 
 
@@ -402,9 +404,11 @@ class TaskStatus(models.Model):
         return self.name
 
     def save(self, *args, **kwargs):
-        if not self.slug:
-            self.slug = slugify_uniquely_for_queryset(self.name, self.project.task_statuses)
+        qs = self.project.task_statuses
+        if self.id:
+            qs = qs.exclude(id=self.id)
 
+        self.slug = slugify_uniquely_for_queryset(self.name, qs)
         return super().save(*args, **kwargs)
 
 
@@ -483,9 +487,11 @@ class IssueStatus(models.Model):
         return self.name
 
     def save(self, *args, **kwargs):
-        if not self.slug:
-            self.slug = slugify_uniquely_for_queryset(self.name, self.project.issue_statuses)
+        qs = self.project.issue_statuses
+        if self.id:
+            qs = qs.exclude(id=self.id)
 
+        self.slug = slugify_uniquely_for_queryset(self.name, qs)
         return super().save(*args, **kwargs)
 
 
diff --git a/tests/integration/test_projects.py b/tests/integration/test_projects.py
index f2a6c249..e268f1fe 100644
--- a/tests/integration/test_projects.py
+++ b/tests/integration/test_projects.py
@@ -26,3 +26,60 @@ def test_partially_update_project(client):
     client.login(project.owner)
     response = client.json.patch(url, json.dumps(data))
     assert response.status_code == 400
+
+
+def test_us_status_slug_generation(client):
+    us_status = f.UserStoryStatusFactory(name="NEW")
+    assert us_status.slug == "new"
+
+    client.login(us_status.project.owner)
+
+    url = reverse("userstory-statuses-detail", kwargs={"pk": us_status.pk})
+
+    data = {"name": "new"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new"
+
+    data = {"name": "new status"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new-status"
+
+
+def test_task_status_slug_generation(client):
+    task_status = f.TaskStatusFactory(name="NEW")
+    assert task_status.slug == "new"
+
+    client.login(task_status.project.owner)
+
+    url = reverse("task-statuses-detail", kwargs={"pk": task_status.pk})
+
+    data = {"name": "new"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new"
+
+    data = {"name": "new status"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new-status"
+
+
+def test_issue_status_slug_generation(client):
+    issue_status = f.IssueStatusFactory(name="NEW")
+    assert issue_status.slug == "new"
+
+    client.login(issue_status.project.owner)
+
+    url = reverse("issue-statuses-detail", kwargs={"pk": issue_status.pk})
+
+    data = {"name": "new"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new"
+
+    data = {"name": "new status"}
+    response = client.json.patch(url, json.dumps(data))
+    assert response.status_code == 200
+    assert response.data["slug"] == "new-status"