diff --git a/perl/t/00_compile.t b/perl/t/00_compile.t
index f91b29e7..d465f8dc 100644
--- a/perl/t/00_compile.t
+++ b/perl/t/00_compile.t
@@ -3,4 +3,5 @@ use warnings;
 use Test::More tests => 1;
 
 use_ok 'Data::MessagePack';
-diag ( $INC{'Data/MessagePack/PP.pm'} ? 'PP' : 'XS' );
+diag ( "Testing Data::MessagePack/$Data::MessagePack::VERSION (",
+    $INC{'Data/MessagePack/PP.pm'} ? 'PP' : 'XS', ")" );