diff --git a/source4/build/pidl/typelist.pm b/source4/build/pidl/typelist.pm
index cc8504e80f4..7c54587ac75 100644
--- a/source4/build/pidl/typelist.pm
+++ b/source4/build/pidl/typelist.pm
@@ -239,7 +239,7 @@ my $aliases = {
 	"char" => "uint8",
 	"long" => "int32",
 	"short" => "int16",
-	"hyper" => "HYPER_T"
+	"HYPER_T" => "hyper"
 };
 
 sub RegisterAliases()