diff --git a/Modules/IGT/Testing/files.cmake b/Modules/IGT/Testing/files.cmake
index 0f463a9825..b4b5aacf95 100644
--- a/Modules/IGT/Testing/files.cmake
+++ b/Modules/IGT/Testing/files.cmake
@@ -1,49 +1,49 @@
 set(MODULE_TESTS
    mitkCameraVisualizationTest.cpp
    mitkClaronInterfaceTest.cpp
    mitkClaronToolTest.cpp
    mitkClaronTrackingDeviceTest.cpp
    mitkInternalTrackingToolTest.cpp
    mitkNavigationDataDisplacementFilterTest.cpp
    mitkNavigationDataLandmarkTransformFilterTest.cpp
    mitkNavigationDataObjectVisualizationFilterTest.cpp
    mitkNavigationDataTest.cpp
    mitkNavigationDataRecorderTest.cpp
    mitkNavigationDataReferenceTransformFilterTest.cpp
    mitkNavigationDataSequentialPlayerTest.cpp
    mitkNavigationDataSourceTest.cpp
    mitkNavigationDataToMessageFilterTest.cpp
    mitkNavigationDataToNavigationDataFilterTest.cpp
    mitkNavigationDataToPointSetFilterTest.cpp
    mitkNavigationDataTransformFilterTest.cpp
    mitkNDIPassiveToolTest.cpp
    mitkNDIProtocolTest.cpp
    mitkNDITrackingDeviceTest.cpp
    mitkTimeStampTest.cpp
    mitkTrackingVolumeGeneratorTest.cpp
    mitkTrackingDeviceTest.cpp
    mitkTrackingToolTest.cpp
    mitkVirtualTrackingDeviceTest.cpp
-   mitkNavigationDataPlayerTest.cpp # deactivated see bug 11636
+   mitkNavigationDataPlayerTest.cpp # see bug 11636
    mitkTrackingDeviceSourceTest.cpp
    mitkTrackingDeviceSourceConfiguratorTest.cpp
    mitkNavigationDataEvaluationFilterTest.cpp
    mitkTrackingTypesTest.cpp
 
    # ------------------ Navigation Tool Management Tests -------------------
    mitkNavigationToolStorageTest.cpp
-   #mitkNavigationToolStorageSerializerAndDeserializerTest.cpp
+   mitkNavigationToolStorageSerializerAndDeserializerTest.cpp
    mitkNavigationToolTest.cpp
    mitkNavigationToolReaderAndWriterTest.cpp
    # -----------------------------------------------------------------------
 
    # ------------------ Deavtivated Tests ----------------------------------
 
    # -----------------------------------------------------------------------
 )
 
 set(MODULE_CUSTOM_TESTS
   mitkNDIAuroraHardwareTest.cpp
   mitkNDIPolarisHardwareTest.cpp
   mitkClaronTrackingDeviceHardwareTest.cpp
 )