diff --git a/t/testutil.pl b/t/testutil.pl
index 981b659b..35a565c8 100644
--- a/t/testutil.pl
+++ b/t/testutil.pl
@@ -29,7 +29,7 @@
 # perls the burden of avoiding warnings becomes too large, and someone still
 # trying to use such outmoded versions should be willing to accept warnings in
 # our test suite.
-$SIG{__WARN__} = sub { die "Fatalized: $_[0]" } if $] ge "5.6.0";
+$SIG{__WARN__} = sub { die "Fatalized: $_[0]" } if "$]" >= 5.006;
 
 # This defines ASCII/UTF-8 vs EBCDIC/UTF-EBCDIC
 $::IS_ASCII  = ord 'A' ==  65;