diff --git a/src/hotspot/share/gc/z/zRootsIterator.hpp b/src/hotspot/share/gc/z/zRootsIterator.hpp
index 8208c947b0e..423ebe9bef8 100644
--- a/src/hotspot/share/gc/z/zRootsIterator.hpp
+++ b/src/hotspot/share/gc/z/zRootsIterator.hpp
@@ -34,8 +34,8 @@
 template <typename Iterator>
 class ZParallelApply {
 private:
-  Iterator      _iter;
-  Atomic<bool>  _completed;
+  Iterator     _iter;
+  Atomic<bool> _completed;
 
 public:
   ZParallelApply(ZGenerationIdOptional generation)