diff --git a/config/cms.php b/config/cms.php
index 5a4421828..0b12b46f2 100644
--- a/config/cms.php
+++ b/config/cms.php
@@ -329,18 +329,4 @@ return [
 
     'forceBytecodeInvalidation' => true,
 
-    /*
-    |--------------------------------------------------------------------------
-    | Duplicate database query cache
-    |--------------------------------------------------------------------------
-    |
-    | If the caching is enabled, database queries with identical statements will
-    | have the results stored in memory across the same request. This increases
-    | performance for smaller more frequent queries but may lower performance
-    | for queries that return a large number of records.
-    |
-    */
-
-    'enableDuplicateQueryCache' => true,
-
 ];
diff --git a/config/testing/cms.php b/config/testing/cms.php
index 59e0cb95e..dfea912c7 100644
--- a/config/testing/cms.php
+++ b/config/testing/cms.php
@@ -109,18 +109,4 @@ return [
 
     'themesPathLocal' => base_path('tests/fixtures/themes'),
 
-    /*
-    |--------------------------------------------------------------------------
-    | Duplicate database query cache
-    |--------------------------------------------------------------------------
-    |
-    | If the caching is enabled, database queries with identical statements will
-    | have the results stored in memory across the same request. This increases
-    | performance for smaller more frequent queries but may lower performance
-    | for queries that return a large number of records.
-    |
-    */
-
-    'enableDuplicateQueryCache' => false,
-
 ];
diff --git a/tests/unit/plugins/database/RevisionableModelTest.php b/tests/unit/plugins/database/RevisionableModelTest.php
index 792c325d0..770538166 100644
--- a/tests/unit/plugins/database/RevisionableModelTest.php
+++ b/tests/unit/plugins/database/RevisionableModelTest.php
@@ -12,6 +12,7 @@ class RevisionableModelTest extends PluginTestCase
         include_once base_path().'/tests/fixtures/plugins/database/tester/models/Post.php';
 
         $this->runPluginRefreshCommand('Database.Tester');
+        Model::flushDuplicateCache();
     }
 
     public function testUpdateNothing()