diff --git a/CMakeLists.txt b/CMakeLists.txt
index 00b9383f..aa517182 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -73,7 +73,8 @@ if(UNIX)
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -O2 -fPIC")
 elseif(MSVC)
 	# Skip warning for invalid conversion from size_t to uint32_t for all targets below for now
-	add_compile_options("/wd4267" "/utf-8")
+	# Also disable non-portable MSVC volatile behavior
+	add_compile_options("/wd4267" "/utf-8" "/volatile:iso")
 elseif(WIN32)
 	add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
 endif()