diff --git a/Boilerplate/project.lua b/Boilerplate/project.lua
index f273493..616a857 100644
--- a/Boilerplate/project.lua
+++ b/Boilerplate/project.lua
@@ -62,7 +62,7 @@ local boilerplateProject = function(name, projectType, src, inc, dest, root)
     cppdialect("C++20")
     
     if (usingMSVC) then
-        filter {"files:**.cpp or files:**.cc"} 
+        filter {"files:**.cpp or files:**.cc or files:**.cxx"} 
             buildoptions {"/experimental:module-", "/Zc:__cplusplus"}
         filter {}
     end
@@ -79,6 +79,8 @@ local boilerplateProject = function(name, projectType, src, inc, dest, root)
         
     kind(projectType)
 
+    defines("_AU_BUILDING_" .. string.upper(projectType))
+
 	if (usingMSVC) then
 		buildoptions {"-utf-8"}
 	end