diff --git a/typo3/sysext/core/Documentation/Changelog/master/Feature-65698-AdditionalResourceServiceLocalization.rst b/typo3/sysext/core/Documentation/Changelog/master/Feature-65698-AdditionalResourceServiceLocalization.rst
new file mode 100644
index 0000000000000000000000000000000000000000..0026e48c3dd2a67259e82e64a7aa0658ed66aa95
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Feature-65698-AdditionalResourceServiceLocalization.rst
@@ -0,0 +1,17 @@
+===========================================================================
+Feature: #65698 - Additional localization files in backend workspace module
+===========================================================================
+
+Description
+===========
+
+The AdditionalResourceService of the workspace module in the backend is extended
+by the functionality to register custom localization files that are forwarded to
+the PageRenderer in the end. This way, labels can be accessed in JavaScript using
+the TYPO3.l10n.localize() function for instance.
+
+.. code-block:: php
+
+	\TYPO3\CMS\Workspaces\Service\AdditionalResourceService::getInstance()->addLocalizationResource(
+		'EXT:my_extension/Resources/Private/Language/locallang.xlf'
+	);
diff --git a/typo3/sysext/workspaces/Classes/Controller/ReviewController.php b/typo3/sysext/workspaces/Classes/Controller/ReviewController.php
index 5bc30bd49f36d354a38e3f069b676c3c94cffab4..2d3f3e2027720ca5acbbbbbc39bfe55f3e813f58 100644
--- a/typo3/sysext/workspaces/Classes/Controller/ReviewController.php
+++ b/typo3/sysext/workspaces/Classes/Controller/ReviewController.php
@@ -192,6 +192,9 @@ class ReviewController extends AbstractController {
 		foreach ($javaScriptFiles as $javaScriptFile) {
 			$this->pageRenderer->addJsFile($javaScriptFile);
 		}
+		foreach ($this->getAdditionalResourceService()->getLocalizationResources() as $localizationResource) {
+			$this->pageRenderer->addInlineLanguageLabelFile($localizationResource);
+		}
 		$this->pageRenderer->addInlineSetting('RecordHistory', 'moduleUrl', BackendUtility::getModuleUrl('record_history'));
 	}
 
diff --git a/typo3/sysext/workspaces/Classes/Service/AdditionalResourceService.php b/typo3/sysext/workspaces/Classes/Service/AdditionalResourceService.php
index 2504d150c21dd47678dfbd3e944c39dadfbd8efa..d81197dec064b7c25334279954d47bf4057d7ef6 100644
--- a/typo3/sysext/workspaces/Classes/Service/AdditionalResourceService.php
+++ b/typo3/sysext/workspaces/Classes/Service/AdditionalResourceService.php
@@ -14,6 +14,8 @@ namespace TYPO3\CMS\Workspaces\Service;
  * The TYPO3 project - inspiring people to share!
  */
 
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
 /**
  * Service for additional columns in GridPanel
  *
@@ -31,6 +33,11 @@ class AdditionalResourceService implements \TYPO3\CMS\Core\SingletonInterface {
 	 */
 	protected $stylesheetResources = array();
 
+	/**
+	 * @var array
+	 */
+	protected $localizationResources = array();
+
 	/**
 	 * @return \TYPO3\CMS\Workspaces\Service\AdditionalResourceService
 	 */
@@ -42,7 +49,7 @@ class AdditionalResourceService implements \TYPO3\CMS\Core\SingletonInterface {
 	 * @return \TYPO3\CMS\Extbase\Object\ObjectManager
 	 */
 	static public function getObjectManager() {
-		return \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\ObjectManager::class);
+		return GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\Object\ObjectManager::class);
 	}
 
 	/**
@@ -63,6 +70,15 @@ class AdditionalResourceService implements \TYPO3\CMS\Core\SingletonInterface {
 		$this->stylesheetResources[$name] = $this->resolvePath($resourcePath);
 	}
 
+	/**
+	 * @param string $resourcePath
+	 * @return void
+	 */
+	public function addLocalizationResource($resourcePath) {
+		$absoluteResourcePath = GeneralUtility::getFileAbsFileName($resourcePath);
+		$this->localizationResources[$absoluteResourcePath] = $absoluteResourcePath;
+	}
+
 	/**
 	 * @return array
 	 */
@@ -77,6 +93,13 @@ class AdditionalResourceService implements \TYPO3\CMS\Core\SingletonInterface {
 		return $this->stylesheetResources;
 	}
 
+	/**
+	 * @return array
+	 */
+	public function getLocalizationResources() {
+		return $this->localizationResources;
+	}
+
 	/**
 	 * Resolve path
 	 *
@@ -84,7 +107,7 @@ class AdditionalResourceService implements \TYPO3\CMS\Core\SingletonInterface {
 	 * @return NULL|string
 	 */
 	protected function resolvePath($resourcePath) {
-		$absoluteFilePath = \TYPO3\CMS\Core\Utility\GeneralUtility::getFileAbsFileName($resourcePath);
+		$absoluteFilePath = GeneralUtility::getFileAbsFileName($resourcePath);
 		$absolutePath = dirname($absoluteFilePath);
 		$fileName = basename($absoluteFilePath);