diff --git a/lib/GDPR/IAB/TCFv2.pm b/lib/GDPR/IAB/TCFv2.pm
index cfa5a0b..5c47214 100644
--- a/lib/GDPR/IAB/TCFv2.pm
+++ b/lib/GDPR/IAB/TCFv2.pm
@@ -318,13 +318,13 @@ sub _parse_publisher_restrictions {
             $current_offset
           );
 
-        $restrictions{$purpose_id} //= {};
+        $restrictions{$purpose_id} = {} if !defined $restrictions{$purpose_id};
+
         $restrictions{$purpose_id}->{$restriction_type} = $vendor_restrictions;
 
         $current_offset = $next_offset;
     }
 
-
     my $publisher_restrictions = GDPR::IAB::TCFv2::PublisherRestrictions->new(
         restrictions => \%restrictions,
     );
diff --git a/t/01-parse.t b/t/01-parse.t
index 3995f1a..31b38c0 100644
--- a/t/01-parse.t
+++ b/t/01-parse.t
@@ -364,7 +364,7 @@ subtest "check publisher restriction" => sub {
         done_testing;
     };
 
-  done_testing;
+    done_testing;
 };
 
 subtest "invalid tcf consent string candidates" => sub {