diff --git a/Tests/Functional/AbstractFunctionalTestCase.php b/Tests/Functional/AbstractFunctionalTestCase.php
index fde9761..f0b1871 100644
--- a/Tests/Functional/AbstractFunctionalTestCase.php
+++ b/Tests/Functional/AbstractFunctionalTestCase.php
@@ -37,7 +37,7 @@ abstract class AbstractFunctionalTestCase extends CoreTestCase
         \TYPO3\CMS\Core\Core\Bootstrap::getInstance()->initializeLanguageObject();
 
         foreach ($this->getDataSets() as $dataSet) {
-            $this->importDataSet($dataSet);
+            $this->importDataSet('EXT:search_core/' . $dataSet);
         }
 
         $this->setUpFrontendRootPage(1, $this->getTypoScriptFilesForFrontendRootPage());
diff --git a/Tests/Functional/Connection/Elasticsearch/IndexTcaTableTest.php b/Tests/Functional/Connection/Elasticsearch/IndexTcaTableTest.php
index ae671dd..40b5fa4 100644
--- a/Tests/Functional/Connection/Elasticsearch/IndexTcaTableTest.php
+++ b/Tests/Functional/Connection/Elasticsearch/IndexTcaTableTest.php
@@ -124,7 +124,7 @@ class IndexTcaTableTest extends AbstractFunctionalTestCase
             parent::getTypoScriptFilesForFrontendRootPage(),
             ['EXT:search_core/Tests/Functional/Fixtures/Indexing/UserWhereClause.ts']
         ));
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/UserWhereClause.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/UserWhereClause.xml');
 
         \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class)
             ->get(IndexerFactory::class)
@@ -157,7 +157,7 @@ class IndexTcaTableTest extends AbstractFunctionalTestCase
      */
     public function resolvesRelations()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/ResolveRelations.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/ResolveRelations.xml');
 
         \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class)
             ->get(IndexerFactory::class)
diff --git a/Tests/Functional/DataProcessing/TcaRelationResolvingProcessorTest.php b/Tests/Functional/DataProcessing/TcaRelationResolvingProcessorTest.php
index c5011df..28f2854 100644
--- a/Tests/Functional/DataProcessing/TcaRelationResolvingProcessorTest.php
+++ b/Tests/Functional/DataProcessing/TcaRelationResolvingProcessorTest.php
@@ -33,7 +33,7 @@ class TcaRelationResolvingProcessorTest extends AbstractFunctionalTestCase
      */
     public function resolveInlineRelation()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/InlineRelation.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/InlineRelation.xml');
         $objectManager = GeneralUtility::makeInstance(ObjectManager::class);
         $table = 'sys_file';
 
@@ -55,7 +55,7 @@ class TcaRelationResolvingProcessorTest extends AbstractFunctionalTestCase
      */
     public function resolveStaticSelectItems()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/StaticSelectItems.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/StaticSelectItems.xml');
         $objectManager = GeneralUtility::makeInstance(ObjectManager::class);
         $table = 'tt_content';
 
@@ -74,7 +74,7 @@ class TcaRelationResolvingProcessorTest extends AbstractFunctionalTestCase
      */
     public function resolveForeignDb()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/ForeignDb.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/ForeignDb.xml');
         $objectManager = GeneralUtility::makeInstance(ObjectManager::class);
         $table = 'tt_content';
 
@@ -96,7 +96,7 @@ class TcaRelationResolvingProcessorTest extends AbstractFunctionalTestCase
      */
     public function resolveForeignMmSelect()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/ForeignMmSelect.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/TcaIndexer/RelationResolver/ForeignMmSelect.xml');
         $objectManager = GeneralUtility::makeInstance(ObjectManager::class);
         $table = 'tt_content';
 
diff --git a/Tests/Functional/Indexing/PagesIndexerTest.php b/Tests/Functional/Indexing/PagesIndexerTest.php
index acc8b68..69db4cf 100644
--- a/Tests/Functional/Indexing/PagesIndexerTest.php
+++ b/Tests/Functional/Indexing/PagesIndexerTest.php
@@ -33,7 +33,7 @@ class PagesIndexerTest extends AbstractFunctionalTestCase
      */
     public function pagesContainAllAdditionalInformation()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/IndexTcaTable.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/IndexTcaTable.xml');
 
         $objectManager = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class);
         $tableName = 'pages';
@@ -71,7 +71,7 @@ class PagesIndexerTest extends AbstractFunctionalTestCase
      */
     public function rootLineIsRespectedDuringIndexing($dataSetPath)
     {
-        $this->importDataSet($dataSetPath);
+        $this->importDataSet('EXT:search_core/' . $dataSetPath);
 
         $objectManager = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class);
         $tableName = 'pages';
diff --git a/Tests/Functional/Indexing/TcaIndexerTest.php b/Tests/Functional/Indexing/TcaIndexerTest.php
index 472cc15..b447c99 100644
--- a/Tests/Functional/Indexing/TcaIndexerTest.php
+++ b/Tests/Functional/Indexing/TcaIndexerTest.php
@@ -43,7 +43,7 @@ class TcaIndexerTest extends AbstractFunctionalTestCase
      */
     public function respectRootLineBlacklist()
     {
-        $this->importDataSet('Tests/Functional/Fixtures/Indexing/TcaIndexer/RespectRootLineBlacklist.xml');
+        $this->importDataSet('EXT:search_core/Tests/Functional/Fixtures/Indexing/TcaIndexer/RespectRootLineBlacklist.xml');
         $objectManager = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(ObjectManager::class);
         $tableName = 'tt_content';
         $tableService = $objectManager->get(