diff --git a/app/server-control/controllers/power-operations-controller.html b/app/server-control/controllers/power-operations-controller.html
index 7f61fb5..ab83437 100644
--- a/app/server-control/controllers/power-operations-controller.html
+++ b/app/server-control/controllers/power-operations-controller.html
@@ -143,7 +143,7 @@
               </label>
             </fieldset>
               <div>
-                <button class="btn-primary" ng-click="rebootConfirmModal()" type="submit" ng-disabled="dataService.server_unreachable">
+                <button class="btn btn-primary" ng-click="rebootConfirmModal()" type="submit" ng-disabled="dataService.server_unreachable">
                   Reboot
                 </button>
               </div>
@@ -166,7 +166,7 @@
             </label>
            </fieldset>
             <div>
-              <button class="btn-primary" ng-click="shutdownConfirmModal()" type="submit" ng-disabled="dataService.server_unreachable">
+              <button class="btn btn-primary" ng-click="shutdownConfirmModal()" type="submit" ng-disabled="dataService.server_unreachable">
                 Shut down
               </button>
             </div>