diff --git a/src/Target/MapBuilder.php b/src/Target/MapBuilder.php
index 50af85bd4..20ccd80e0 100644
--- a/src/Target/MapBuilder.php
+++ b/src/Target/MapBuilder.php
@@ -137,7 +137,7 @@ public function build(Filter $filter, FileAnalyser $analyser): array
     }
 
     /**
-     * @param-out array $namespaces
+     * @param-out array $data
      *
      * @param non-empty-string $unit
      * @param non-empty-string $file