diff --git a/application/layouts/scripts/layout.phtml b/application/layouts/scripts/layout.phtml
index d801f060e..e00b9371d 100644
--- a/application/layouts/scripts/layout.phtml
+++ b/application/layouts/scripts/layout.phtml
@@ -29,7 +29,7 @@ $iframeClass = $isIframe ? ' iframe' : '';
   <title><?= $this->title ? $this->escape($this->title) : 'Icinga Web' ?></title>
   <!-- TODO: viewport and scale settings make no sense for us, fix this -->
   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
-<? if ($isIframe): ?>
+<?php if ($isIframe): ?>
   <base target="_parent"/>
 <?php else: ?>
   <script type="text/javascript">
diff --git a/application/views/scripts/config/module.phtml b/application/views/scripts/config/module.phtml
index 8b82b02be..c74cac80d 100644
--- a/application/views/scripts/config/module.phtml
+++ b/application/views/scripts/config/module.phtml
@@ -4,7 +4,7 @@
 <div class="content">
 <?php if (! $module): ?>
 <?= $this->translate('There is no such module installed.') ?>
-<? return; endif ?>
+<?php return; endif ?>
 <?php
 $dependencies = $module->getDependencies();
 $restrictions = $module->getProvidedRestrictions();
diff --git a/application/views/scripts/config/modules.phtml b/application/views/scripts/config/modules.phtml
index e0204b24f..c0951d415 100644
--- a/application/views/scripts/config/modules.phtml
+++ b/application/views/scripts/config/modules.phtml
@@ -14,7 +14,7 @@
       <?= $this->icon('success.png', $this->translate('Module is enabled')) ?>
       <?php else: ?>
       <?= $this->icon('remove.png', $this->translate('Module is disabled')) ?>
-      <? endif ?>
+      <?php endif ?>
         <a href="<?= $this->url(
             'config/module/',
             array('name' => $module->name)
@@ -23,7 +23,7 @@
         ?>)
       </td>
     </tr>
-  <? endforeach ?>
+  <?php endforeach ?>
   </tbody>
 </table>
 </div>
diff --git a/modules/monitoring/application/views/scripts/list/eventhistory.phtml b/modules/monitoring/application/views/scripts/list/eventhistory.phtml
index 56c2198e9..aa120d81d 100644
--- a/modules/monitoring/application/views/scripts/list/eventhistory.phtml
+++ b/modules/monitoring/application/views/scripts/list/eventhistory.phtml
@@ -109,7 +109,7 @@
           </div>
         </td>
       </tr>
-    <? endforeach ?>
+    <?php endforeach ?>
     </tbody>
   </table>
 </div>
diff --git a/modules/monitoring/application/views/scripts/show/history.phtml b/modules/monitoring/application/views/scripts/show/history.phtml
index 7c72888c4..501c07861 100644
--- a/modules/monitoring/application/views/scripts/show/history.phtml
+++ b/modules/monitoring/application/views/scripts/show/history.phtml
@@ -142,7 +142,7 @@ $output = $this->tickets ? preg_replace_callback(
           </div>
         </td>
       </tr>
-<? endforeach; ?>
+<?php endforeach; ?>
     </tbody>
   </table>
 </div>