diff --git a/kallithea/templates/pullrequests/pullrequest.html b/kallithea/templates/pullrequests/pullrequest.html
--- a/kallithea/templates/pullrequests/pullrequest.html
+++ b/kallithea/templates/pullrequests/pullrequest.html
@@ -99,8 +99,8 @@ ${self.repo_context_bar('showpullrequest
                       <div class="gravatar"><img alt="gravatar" src="${member['gravatar_link']}"/> </div>
                       <div style="float:left">${member['firstname']} ${member['lastname']} (${_('owner')})</div>
                       <input type="hidden" value="${member['user_id']}" name="review_members" />
-                      <span class="action_button" style="padding: 3px" onclick="removeReviewMember(${member['user_id']})">
-                          <i class="icon-remove-sign"  style="color: #FF4444;"></i>
+                      <span class="action_button" style="padding: 3px" onclick="removeReviewMember(${member['user_id']})" title="${_('Remove reviewer')}>
+                          <i class="icon-remove-sign" style="color: #FF4444;"></i>
                       </span>
                     </div>
                   </li>
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
@@ -116,7 +116,7 @@ ${self.repo_context_bar('showpullrequest
                   <div style="float:left;">${member.full_name} (${_('owner') if c.pull_request.user_id == member.user_id else _('reviewer')})</div>
                   <input type="hidden" value="${member.user_id}" name="review_members" />
                   %if not c.pull_request.is_closed() and (h.HasPermissionAny('hg.admin')() or h.HasRepoPermissionAny('repository.admin')(c.repo_name) or c.pull_request.user_id == c.authuser.user_id):
-                  <div class="reviewer_member_remove action_button" onclick="removeReviewMember(${member.user_id})">
+                  <div class="reviewer_member_remove action_button" onclick="removeReviewMember(${member.user_id})" title="${_('Remove reviewer')}">
                       <i class="icon-remove-sign" style="color: #FF4444;"></i>
                   </div>
                   %endif