diff --git a/src/Printer.php b/src/Printer.php
index f50ac94..00ceb1f 100644
--- a/src/Printer.php
+++ b/src/Printer.php
@@ -96,7 +96,13 @@ protected function printMap(iterable $stmts): array
         }
 
         /** @var list<non-empty-string> */
-        return \array_unique($result);
+        $result = \array_unique($result);
+
+        if (\in_array('mixed', $result, true)) {
+            return ['mixed'];
+        }
+
+        return  $result;
     }
 
     /**