diff --git a/CMakeLists.txt b/CMakeLists.txt
index 711136c4..b2a13f18 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,3 +84,8 @@ endif()
 # add unit tests
 enable_testing()
 add_subdirectory(test)
+
+# TODO remove this hack when clang-20.2 is released
+if(CMAKE_CXX_COMPILER_ID MATCHES ".*Clang" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 20 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 20.2)
+    target_compile_options(mp-units-core PUBLIC "-Wno-unused-result")
+endif()