diff --git a/docs/hooks/usage/symfony.md b/docs/hooks/usage/symfony.md
index 762e435a471f5c025e5d922a7ea58b4d284fdcf2..3bd4491ab8f0f43b937f1d89f3ea6a2bec263fd8 100644
--- a/docs/hooks/usage/symfony.md
+++ b/docs/hooks/usage/symfony.md
@@ -47,7 +47,7 @@ methods will be automatically registered with the eponymous events.
 
 ```php
 use Civi\Test\HeadlessInterface;
-use Civi\Test\HookInterface;
+use Civi\Core\HookInterface;
 use PHPUnit\Framework\TestCase;
 
 class MyTest extends TestCase implements HeadlessInterface, HookInterface {
diff --git a/docs/testing/phpunit.md b/docs/testing/phpunit.md
index 449966c49439b8b374d35d06d655de47cac21e7e..27fc32c71104f5eff9ae9bebe6953510cfe5fe10 100644
--- a/docs/testing/phpunit.md
+++ b/docs/testing/phpunit.md
@@ -431,7 +431,7 @@ The `\Civi\Test\HeadlessInterface` marks a test-class as [headless](index.md#hea
 
 #### HookInterface
 
-The `\Civi\Test\HookInterface` simplifies testing of CiviCRM hooks and events. Your test may listen to a hook by adding an eponymous function. For example, this listens to `hook_civicrm_post`:
+The `\Civi\Core\HookInterface` simplifies testing of CiviCRM hooks and events. Your test may listen to a hook by adding an eponymous function. For example, this listens to `hook_civicrm_post`:
 
 ```php
 class MyTest extends PHPUnit_Framework_TestCase