diff --git a/none/tests/x86/gen_insn_test.pl b/none/tests/x86/gen_insn_test.pl
index 6391c7394..9b19b4490 100644
--- a/none/tests/x86/gen_insn_test.pl
+++ b/none/tests/x86/gen_insn_test.pl
@@ -1,5 +1,6 @@
 #!/usr/bin/perl
 
+use 5.006;
 use strict;
 use warnings;