diff --git a/test/unit_test/static/CMakeLists.txt b/test/unit_test/static/CMakeLists.txt
index 804544f4..d01adfce 100644
--- a/test/unit_test/static/CMakeLists.txt
+++ b/test/unit_test/static/CMakeLists.txt
@@ -52,4 +52,4 @@ target_link_libraries(unit_tests_static
         mp::units
 )
 
-set_source_files_properties(quantity_test.cpp PROPERTIES COMPILE_FLAGS -Wno-conversion)
+set_source_files_properties(quantity_test.cpp PROPERTIES COMPILE_OPTIONS $<IF:$<CXX_COMPILER_ID:MSVC>,/wd4244,-Wno-conversion>)
diff --git a/test/unit_test/static/quantity_test.cpp b/test/unit_test/static/quantity_test.cpp
index 76d87e08..bb2820c5 100644
--- a/test/unit_test/static/quantity_test.cpp
+++ b/test/unit_test/static/quantity_test.cpp
@@ -283,10 +283,12 @@ static_assert((2.5_q_m *= 3).count() == 7.5);
 static_assert((7.5_q_m /= 3).count() == 2.5);
 static_assert((3500_q_m %= 1_q_km).count() == 500);
 
-// next two lines trigger the gcc 'Wconversion' warning
+#ifndef COMP_MSVC  // TODO ICE (https://developercommunity2.visualstudio.com/t/ICE-on-a-constexpr-operator-in-mp-unit/1302907)
+// next two lines trigger conversions warnings
 // (warning disabled in CMake for this file)
 static_assert((22_q_m *= 33.33).count() == 733);
 static_assert((22_q_m /= 3.33).count() == 6);
+#endif
 
 template<typename Metre>
 concept invalid_compound_assignments = requires() {