diff --git a/phpBB/adm/style/installer_footer.html b/phpBB/adm/style/installer_footer.html
index 63aebec993..fefa8f6d3f 100644
--- a/phpBB/adm/style/installer_footer.html
+++ b/phpBB/adm/style/installer_footer.html
@@ -11,6 +11,15 @@
 	</div>
 </div>
 
+<script type="text/javascript">
+<!--
+installLang = {
+	title: '{LA_TIMEOUT_DETECTED_TITLE}',
+	msg: '{LA_TIMEOUT_DETECTED_MESSAGE}'
+};
+//-->
+</script>
+
 <script type="text/javascript" src="{T_JQUERY_LINK}"></script>
 <!-- IF S_ALLOW_CDN --><script type="text/javascript">window.jQuery || document.write('\x3Cscript src="{T_ASSETS_PATH}/javascript/jquery.min.js">\x3C/script>');</script><!-- ENDIF -->
 <script type="text/javascript" src="{T_ASSETS_PATH}/javascript/core.js?assets_version={T_ASSETS_VERSION}"></script>
diff --git a/phpBB/assets/javascript/installer.js b/phpBB/assets/javascript/installer.js
index 0e54654ff1..d9f446a28d 100644
--- a/phpBB/assets/javascript/installer.js
+++ b/phpBB/assets/javascript/installer.js
@@ -374,8 +374,8 @@
 			if (timeoutDetected) {
 				addMessage('error',
 					[{
-						title:'The installer detected a timeout.',
-						description: 'The installer has detected a timeout, you may try to refresh the page, that may lead to data corruption. We suggest that you either increase your timeout settings or try to use the CLI.'
+						title: installLang.title,
+						description: installLang.msg
 					}]
 				);
 			}
diff --git a/phpBB/language/en/install.php b/phpBB/language/en/install.php
index 3ce034e590..41eef61c50 100644
--- a/phpBB/language/en/install.php
+++ b/phpBB/language/en/install.php
@@ -120,7 +120,11 @@ $lang = array_merge($lang, array(
 // General error messages
 $lang = array_merge($lang, array(
 	'INST_ERR_MISSING_DATA'		=> 'You must fill out all fields in this block.',
-	'PHPBB_ALREADY_INSTALLED'	=> 'phpBB is already installed.'
+
+	'PHPBB_ALREADY_INSTALLED'	=> 'phpBB is already installed.',
+
+	'TIMEOUT_DETECTED_TITLE'	=> 'The installer detected a timeout',
+	'TIMEOUT_DETECTED_MESSAGE'	=> 'The installer has detected a timeout, you may try to refresh the page, which may lead to data corruption. We suggest that you either increase your timeout settings or try to use the CLI.',
 ));
 
 // Data obtaining translations