diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 4a803a537..43fcfd4ae 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -53,4 +53,9 @@ if (NOT EXTERNAL_CATCH2)
   catch_discover_tests( unittests
       WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
       )
+else()
+  add_test(NAME unittests
+           COMMAND unittests
+           WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+           )
 endif()