diff --git a/src/hotspot/share/runtime/objectMonitor.hpp b/src/hotspot/share/runtime/objectMonitor.hpp
index 1b3246c13e3..45ab2dcc547 100644
--- a/src/hotspot/share/runtime/objectMonitor.hpp
+++ b/src/hotspot/share/runtime/objectMonitor.hpp
@@ -39,7 +39,6 @@ class ObjectMonitorContentionMark;
 class ParkEvent;
 class BasicLock;
 class ContinuationWrapper;
-class EventJavaMonitorWait;
 
 class ObjectWaiter : public CHeapObj<mtThread> {
  public: