diff --git a/src/compiler/compiler.ml b/src/compiler/compiler.ml
index 2c0db1ed8da..e3c432e93dd 100644
--- a/src/compiler/compiler.ml
+++ b/src/compiler/compiler.ml
@@ -233,6 +233,7 @@ module Setup = struct
 		Common.define_value com Define.HaxeVer (Printf.sprintf "%.3f" (float_of_int Globals.version /. 1000.));
 		Common.raw_define com "haxe3";
 		Common.raw_define com "haxe4";
+		Common.raw_define com "haxe5";
 		Common.define_value com Define.Haxe s_version;
 		Common.raw_define com "true";
 		Common.define_value com Define.Dce "std";