diff --git a/Classes/Command/DestinationDataImportCommand.php b/Classes/Command/DestinationDataImportCommand.php
index 537d4d6..a8a02d2 100644
--- a/Classes/Command/DestinationDataImportCommand.php
+++ b/Classes/Command/DestinationDataImportCommand.php
@@ -54,10 +54,17 @@ class DestinationDataImportCommand extends Command
     {
         Bootstrap::initializeBackendAuthentication();
 
+        $regionUid = $input->getArgument('region-uid');
+        if (is_numeric($regionUid)) {
+            $regionUid = (int) $regionUid;
+        } else {
+            $regionUid = null;
+        }
+
         return $this->destinationDataImportService->import(
             $input->getArgument('rest-experience'),
             $input->getArgument('storage-pid'),
-            $input->getArgument('region-uid'),
+            $regionUid,
             $input->getArgument('files-folder')
         );
     }
diff --git a/Tests/Functional/Import/DestinationDataTest/ImportCleansTransientFilesTest.php b/Tests/Functional/Import/DestinationDataTest/ImportCleansTransientFilesTest.php
index 24f73a2..21efcaa 100644
--- a/Tests/Functional/Import/DestinationDataTest/ImportCleansTransientFilesTest.php
+++ b/Tests/Functional/Import/DestinationDataTest/ImportCleansTransientFilesTest.php
@@ -35,7 +35,7 @@ class ImportCleansTransientFilesTest extends AbstractTest
         ]);
 
         $tester = $this->executeCommand([
-            'storage-pid' => 2,
+            'storage-pid' => '2',
             'rest-experience' => 'beispielstadt',
             'files-folder' => $fileImportPath,
         ]);
diff --git a/Tests/Functional/Import/DestinationDataTest/ImportDoesNotUseUploadsFolderTest.php b/Tests/Functional/Import/DestinationDataTest/ImportDoesNotUseUploadsFolderTest.php
index e1ffb0a..a2c644c 100644
--- a/Tests/Functional/Import/DestinationDataTest/ImportDoesNotUseUploadsFolderTest.php
+++ b/Tests/Functional/Import/DestinationDataTest/ImportDoesNotUseUploadsFolderTest.php
@@ -36,7 +36,7 @@ class ImportDoesNotUseUploadsFolderTest extends AbstractTest
         ]);
 
         $tester = $this->executeCommand([
-            'storage-pid' => 2,
+            'storage-pid' => '2',
             'rest-experience' => 'beispielstadt',
             'files-folder' => $fileImportPath,
         ]);
diff --git a/Tests/Functional/Import/DestinationDataTest/ImportsExampleAsExpectedTest.php b/Tests/Functional/Import/DestinationDataTest/ImportsExampleAsExpectedTest.php
index 89cd6d7..acaf5fa 100644
--- a/Tests/Functional/Import/DestinationDataTest/ImportsExampleAsExpectedTest.php
+++ b/Tests/Functional/Import/DestinationDataTest/ImportsExampleAsExpectedTest.php
@@ -36,10 +36,10 @@ class ImportsExampleAsExpectedTest extends AbstractTest
         ]);
 
         $tester = $this->executeCommand([
-            'storage-pid' => 2,
+            'storage-pid' => '2',
             'rest-experience' => 'beispielstadt',
             'files-folder' => $fileImportPath,
-            'region-uid' => 1,
+            'region-uid' => '1',
         ]);
 
         self::assertSame(0, $tester->getStatusCode());
diff --git a/Tests/Functional/Import/DestinationDataTest/ImportsWithoutRegionIfNotProvidedTest.php b/Tests/Functional/Import/DestinationDataTest/ImportsWithoutRegionIfNotProvidedTest.php
index e98b136..e383e79 100644
--- a/Tests/Functional/Import/DestinationDataTest/ImportsWithoutRegionIfNotProvidedTest.php
+++ b/Tests/Functional/Import/DestinationDataTest/ImportsWithoutRegionIfNotProvidedTest.php
@@ -8,7 +8,7 @@ use TYPO3\CMS\Core\Utility\GeneralUtility;
 /**
  * @testdox DestinationData import
  */
-class ImportsWithoutRegionIfNotProvided extends AbstractTest
+class ImportsWithoutRegionIfNotProvidedTest extends AbstractTest
 {
     /**
      * @test
@@ -33,9 +33,10 @@ class ImportsWithoutRegionIfNotProvided extends AbstractTest
             new Response(200, [], file_get_contents(__DIR__ . '/Fixtures/ExampleImage.jpg') ?: ''),
         ]);
         $tester = $this->executeCommand([
-            'storage-pid' => 2,
+            'storage-pid' => '2',
             'rest-experience' => 'beispielstadt',
             'files-folder' => $fileImportPath,
+            'region-uid' => '',
         ]);
 
         self::assertSame(0, $tester->getStatusCode());