diff --git a/build/Helpers.lua b/build/Helpers.lua
index e2f3d278..bf9db600 100644
--- a/build/Helpers.lua
+++ b/build/Helpers.lua
@@ -24,13 +24,11 @@ gcc_buildflags = { "-std=c++11" }
 msvc_cpp_defines = { }
 
 function os.is_osx()
-  local version = os.getversion()
-  return string.find(version.description, "Mac OS X") ~= nil
+  return os.is("macosx")
 end
 
 function os.is_windows()
-  local version = os.getversion()
-  return string.find(version.description, "Windows") ~= nil
+  return os.is("windows")
 end
 
 function string.starts(str, start)
@@ -95,4 +93,4 @@ function IncludeDir(dir)
       include(dep)
     end
   end
-end
\ No newline at end of file
+end