diff --git a/rhodecode/controllers/pullrequests.py b/rhodecode/controllers/pullrequests.py
--- a/rhodecode/controllers/pullrequests.py
+++ b/rhodecode/controllers/pullrequests.py
@@ -335,6 +335,8 @@ class PullrequestsController(BaseRepoCon
         reviewers = _form['review_members']
 
         title = _form['pullrequest_title']
+        if not title:
+            title = '%s#%s to %s' % (org_repo, org_ref.split(':', 2)[1], other_repo)
         description = _form['pullrequest_desc']
         try:
             pull_request = PullRequestModel().create(
diff --git a/rhodecode/model/forms.py b/rhodecode/model/forms.py
--- a/rhodecode/model/forms.py
+++ b/rhodecode/model/forms.py
@@ -415,7 +415,7 @@ def PullRequestForm(repo_id):
                         v.UniqueList(not_empty=True))
         review_members = v.UniqueList(not_empty=True)
 
-        pullrequest_title = v.UnicodeString(strip=True, required=True, min=3)
+        pullrequest_title = v.UnicodeString(strip=True, required=True)
         pullrequest_desc = v.UnicodeString(strip=True, required=False)
 
         ancestor_rev = v.UnicodeString(strip=True, required=True)