diff --git a/dll/win32/winmm/CMakeLists.txt b/dll/win32/winmm/CMakeLists.txt
index 2566277f94d..5605be65dda 100644
--- a/dll/win32/winmm/CMakeLists.txt
+++ b/dll/win32/winmm/CMakeLists.txt
@@ -24,8 +24,9 @@ add_library(winmm MODULE
 
 if(MSVC)
     # Disable warning C4090: 'function': different 'const' qualifiers
+    # Disable warning C4146: unary minus operator applied to unsigned type, result still unsigned
     # Disable warning C4312: 'type cast': conversion from 'DWORD' to 'HTASK' of greater size
-    target_compile_options(winmm PRIVATE /wd4090 /wd4312)
+    target_compile_options(winmm PRIVATE /wd4090 /wd4146 /wd4312)
 endif()
 
 set_module_type(winmm win32dll)