diff --git a/CbmRoot_test.cmake b/CbmRoot_test.cmake
index 151c66b86d1a4d611de677afdac5b35acc9a2b92..66553796826670a91def63696aa257a4983228ba 100644
--- a/CbmRoot_test.cmake
+++ b/CbmRoot_test.cmake
@@ -175,10 +175,14 @@ If(NOT _RETVAL)
                     RESULTS_VARIABLE _install_ret_value
                    )
     if (NOT _install_ret_value)
+      message("executing test suite in ${CTEST_BINARY_DIRECTORY}/install with source folder available")
+      execute_process(COMMAND ${CTEST_SOURCE_DIRECTORY}/cmake/scripts/execute_installation_test.sh ${CTEST_SOURCE_DIRECTORY}/install
+                      RESULTS_VARIABLE _install_ret_value
+                     )
       execute_process(COMMAND ${CMAKE_EXECUTABLE_NAME} -E rm -R build MQ algo analysis core external fles mvd reco sim
                       WORKING_DIRECTORY ${CTEST_SOURCE_DIRECTORY}
                      )
-      message("executing test suite in ${CTEST_BINARY_DIRECTORY}/install")
+      message("executing test suite in ${CTEST_BINARY_DIRECTORY}/install wihout source folder available")
       execute_process(COMMAND ${CTEST_SOURCE_DIRECTORY}/cmake/scripts/execute_installation_test.sh ${CTEST_SOURCE_DIRECTORY}/install
                       RESULTS_VARIABLE _install_ret_value
                      )