fix stupid undef quote error

diff --git a/lib/Text/Tradition/Collation/Reading.pm b/lib/Text/Tradition/Collation/Reading.pm
index c147db6..1bd5244 100644 (file)
--- a/lib/Text/Tradition/Collation/Reading.pm
+++ b/lib/Text/Tradition/Collation/Reading.pm
@@ -153,7 +153,7 @@ has 'grammar_invalid' => (
 has 'is_nonsense' => (
        is => 'rw',
        isa => 'Bool',
-       default => 'undef',
+       default => undef,
        );
 
 has 'normal_form' => (