gistfile1.diff

diff --git a/lib/MooseX/Declare/Syntax/Keyword/Role.pm b/lib/MooseX/Declare/Syntax/Keyword/Role.pm
index 889cf0a..4b7944a 100644
--- a/lib/MooseX/Declare/Syntax/Keyword/Role.pm
+++ b/lib/MooseX/Declare/Syntax/Keyword/Role.pm
@@ -66,7 +66,7 @@ sub add_parameterized_customizations {
     my @vars = map {
         does_role($_, Placeholder)
             ? ()
-            : [$_->variable_name, $_->label, $_->meta_type_constraint]
+            : [$_->variable_name, $_->label, $_->meta_type_constraint, $_->default_value]
     } $sig->named_params;
 
     $ctx->add_preamble_code_parts(
@@ -74,8 +74,16 @@ sub add_parameterized_customizations {
             join(',', map { $_->[0] } @vars),
             join(' ', map { $_->[1] } @vars),
     );
-
-    $ctx->add_parameter($_->[1] => { isa => $_->[2] }) for @vars;
+    
+    foreach(@vars) {
+        if($_->[3]) {
+            my $default = $_->[3];
+            $ctx->add_parameter($_->[1] => { isa => $_->[2], default => sub { eval $default}});
+        }
+        else {
+            $ctx->add_parameter($_->[1] => { isa => $_->[2] });
+        }
+    }
 }