diff --git a/src/os/bsd/vm/os_bsd.hpp b/src/os/bsd/vm/os_bsd.hpp
index bb8fe3f211ede81475163bce7c931e7e0e0ae210..d9ab28afcc4431cc8ed22ddf34d397b92bc4c10f 100644
--- a/src/os/bsd/vm/os_bsd.hpp
+++ b/src/os/bsd/vm/os_bsd.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -202,7 +202,7 @@ class Bsd {
   static void fast_thread_clock_init(void);
 #endif
 
-  static bool supports_monotonic_clock() {
+  static inline bool supports_monotonic_clock() {
     return _clock_gettime != NULL;
   }
 
diff --git a/src/os/linux/vm/os_linux.hpp b/src/os/linux/vm/os_linux.hpp
index 0f0fa214a045949e839c4e27cf3dd6132aaddcea..7bbc041ed9033cef9c31c939eef27dee06c5bde4 100644
--- a/src/os/linux/vm/os_linux.hpp
+++ b/src/os/linux/vm/os_linux.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -178,7 +178,7 @@ class Linux {
   // fast POSIX clocks support
   static void fast_thread_clock_init(void);
 
-  static bool supports_monotonic_clock() {
+  static inline bool supports_monotonic_clock() {
     return _clock_gettime != NULL;
   }