diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1f02f16..b29998d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -273,7 +273,7 @@ if(ENABLE_ASM)
 		endif()
 	elseif(APPLE AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
 		set(HOST_ASM_MACOSX_X86_64 true)
-	elseif(MSVC AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "AMD64")
+	elseif(MSVC AND AND "${CMAKE_GENERATOR}" MATCHES "Win64")
 		set(HOST_ASM_MASM_X86_64 true)
 		ENABLE_LANGUAGE(ASM_MASM)
 	elseif(CMAKE_SYSTEM_NAME MATCHES "MINGW" AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")