diff --git a/source/test/unit/CMakeLists.txt b/source/test/unit/CMakeLists.txt
index a42b820..321f065 100644
--- a/source/test/unit/CMakeLists.txt
+++ b/source/test/unit/CMakeLists.txt
@@ -260,6 +260,7 @@ function (add_small_vector_unit_tests)
             ${_TARGET_NAME}
             PRIVATE
               GCH_SMALL_VECTOR_TEST_FILE=${_FILE_LOCATION}
+              $<$<COMPILE_LANG_AND_ID:CXX,MSVC>:_ITERATOR_DEBUG_LEVEL=0>
           )
 
           target_compile_options (