--- Makefile.PL
+++ Makefile.PL
@@ -4,7 +4,7 @@ use warnings;
 
 use 5.006;
 
-use ExtUtils::MakeMaker 6.30;
+use ExtUtils::MakeMaker;
 
 
 
@@ -21,7 +21,7 @@ my %WriteMakefileArgs = (
     "constant" => 0
   },
   "CONFIGURE_REQUIRES" => {
-    "ExtUtils::MakeMaker" => "6.30"
+    "ExtUtils::MakeMaker" => "0"
   },
   "DISTNAME" => "Perl-OSType",
   "EXE_FILES" => [],
@@ -55,6 +55,9 @@ unless ( eval { ExtUtils::MakeMaker->VER
 delete $WriteMakefileArgs{CONFIGURE_REQUIRES}
   unless eval { ExtUtils::MakeMaker->VERSION(6.52) };
 
+delete $WriteMakefileArgs{LICENSE}
+  unless eval { ExtUtils::MakeMaker->VERSION(6.31) };
+
 WriteMakefile(%WriteMakefileArgs);