diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6e6cd8c..975ec9d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -340,10 +340,10 @@ if (TBB_BUILD_TESTS)
     add_dependencies (tests test_${testname})
     if (TBB_BUILD_SHARED)
       target_link_libraries (test_${testname} tbb tbbmalloc)
-      target_compile_definitions(test_${testname} PRIVATE __TBB_LIB_NAME=tbb)
+      target_compile_definitions(test_${testname} PRIVATE __TBB_LIB_NAME=tbb$<$<CONFIG:Debug>:_debug>)
     else ()
       target_link_libraries (test_${testname} tbb_static tbbmalloc_static)
-      target_compile_definitions(test_${testname} PRIVATE __TBB_LIB_NAME=tbb_static)
+      target_compile_definitions(test_${testname} PRIVATE __TBB_LIB_NAME=tbb_static$<$<CONFIG:Debug>:_debug>)
     endif ()
     if (LIBRT_LIBRARIES)
       target_link_libraries (test_${testname} ${LIBRT_LIBRARIES})