diff --git a/kallithea/controllers/pullrequests.py b/kallithea/controllers/pullrequests.py
--- a/kallithea/controllers/pullrequests.py
+++ b/kallithea/controllers/pullrequests.py
@@ -611,7 +611,7 @@ class PullrequestsController(BaseRepoCon
                         hgrepo = org_scm_instance._repo
                     show = set(hgrepo.revs('::%ld & !::parents(%s) & !::%s',
                                            avail_revs, revs[0], targethead))
-                    c.update_msg = _('This pull request can be updated with changes on %s:') % c.cs_branch_name
+                    c.update_msg = _('The following changes are available on %s:') % c.cs_branch_name
                 else:
                     show = set()
                     avail_revs = set() # drop revs[0]
diff --git a/kallithea/templates/pullrequests/pullrequest_show.html b/kallithea/templates/pullrequests/pullrequest_show.html
--- a/kallithea/templates/pullrequests/pullrequest_show.html
+++ b/kallithea/templates/pullrequests/pullrequest_show.html
@@ -202,6 +202,7 @@ ${self.repo_context_bar('showpullrequest
                   %endfor
                 </table>
               </div>
+              <div class="msg-div">${_("Pull requests do not change once created. Select a revision and save to replace this pull request with a new one.")}</div>
               %endif
               <div class="msg-div">${c.update_msg_other}</div>
             </div>
@@ -282,7 +283,7 @@ ${self.repo_context_bar('showpullrequest
         %if editable:
           <div class="buttons">
             ${h.submit('pr-form-save',_('Save Changes'),class_="btn btn-small")}
-            ${h.submit('pr-form-clone',_('Save as New Pull Request'),class_="btn btn-small",disabled='disabled')}
+            ${h.submit('pr-form-clone',_('Save Updates as New Pull Request'),class_="btn btn-small",disabled='disabled')}
             ${h.reset('pr-form-reset',_('Cancel Changes'),class_="btn btn-small")}
           </div>
         %endif