diff --git a/example_15/CMakeLists.txt b/example_15/CMakeLists.txt
index 53ab216dc..2ca67931b 100644
--- a/example_15/CMakeLists.txt
+++ b/example_15/CMakeLists.txt
@@ -28,8 +28,9 @@ install(
 if(BUILD_TESTING)
   find_package(ament_cmake_pytest REQUIRED)
 
-  ament_add_pytest_test(test_rrbot_namespace_launch test/test_rrbot_namespace_launch.py)
-  ament_add_pytest_test(test_multi_controller_manager_launch test/test_multi_controller_manager_launch.py)
+  # TODO(christophfroehlich) deactivated because of bug in spawner
+  # ament_add_pytest_test(test_rrbot_namespace_launch test/test_rrbot_namespace_launch.py)
+  # ament_add_pytest_test(test_multi_controller_manager_launch test/test_multi_controller_manager_launch.py)
 
 endif()