diff --git a/src/lua-engine.cpp b/src/lua-engine.cpp
index 0d77ae62..4ae5fdff 100644
--- a/src/lua-engine.cpp
+++ b/src/lua-engine.cpp
@@ -1726,7 +1726,7 @@ int FCEU_LuaUsingJoypad(int which) {
  * per frame (if FCEU_LuaUsingJoypad says it's safe to do so)
  */
 uint8 FCEU_LuaReadJoypad(int which) {
-	lua_joypads_used &= !(1 << which);
+	lua_joypads_used &= ~(1 << which);
 	return lua_joypads[which];
 }
 
diff --git a/vc8/fceux.vcproj b/vc8/fceux.vcproj
index dca17488..f61eb65a 100644
--- a/vc8/fceux.vcproj
+++ b/vc8/fceux.vcproj
@@ -44,7 +44,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="../src/drivers/win/zlib;../src/drivers/win/directx;../src;../src/drivers/win/lua/include"
-				PreprocessorDefinitions="WIN32;_DEBUG;MSVC;_CRT_SECURE_NO_DEPRECATE;_WIN32_WINDOWS=0x0410;WINVER=0x0410;NETWORK;LSB_FIRST;_USE_32BIT_TIME_T;FCEUDEF_DEBUGGER;_USE_SHARED_MEMORY_;NOMINMAX;LUA_BUILD_AS_DLL;HAS_vsnprintf"
+				PreprocessorDefinitions="WIN32;_DEBUG;MSVC;_CRT_SECURE_NO_DEPRECATE;_WIN32_WINDOWS=0x0410;WINVER=0x0410;NETWORK;LSB_FIRST;_USE_32BIT_TIME_T;FCEUDEF_DEBUGGER;_USE_SHARED_MEMORY_;NOMINMAX;LUA_BUILD_AS_DLL;HAS_vsnprintf;_S9XLUA_H"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"