diff --git a/src/hotspot/share/runtime/nonJavaThread.hpp b/src/hotspot/share/runtime/nonJavaThread.hpp
index 825fd48485c..7807af6e228 100644
--- a/src/hotspot/share/runtime/nonJavaThread.hpp
+++ b/src/hotspot/share/runtime/nonJavaThread.hpp
@@ -114,11 +114,6 @@ class WatcherThread: public NonJavaThread {
   // volatile due to at least one lock-free read
   volatile static bool _should_terminate;
  public:
-
-  enum SomeConstants {
-    delay_interval = 10                          // interrupt delay in milliseconds
-  };
-
   // Constructor
   WatcherThread();