diff --git a/src/hotspot/share/runtime/mutex.hpp b/src/hotspot/share/runtime/mutex.hpp
index 4fe7ba557bc5..82479267918d 100644
--- a/src/hotspot/share/runtime/mutex.hpp
+++ b/src/hotspot/share/runtime/mutex.hpp
@@ -45,10 +45,10 @@ class Mutex : public CHeapObj<mtSynchronizer> {
   // Special low level locks are given names and ranges avoid overlap.
   enum lock_types {
        event,
-       tty            = event          +   3,
-       service        = tty            +   3,
+       service        = event          +   3,
        stackwatermark = service        +   3,
-       special        = stackwatermark +   3,
+       tty            = stackwatermark +   3,
+       special        = tty            +   3,
        oopstorage     = special        +   3,
        leaf           = oopstorage     +   2,
        safepoint      = leaf           +  10,
diff --git a/test/hotspot/jtreg/compiler/uncommontrap/TestDeoptOOM.java b/test/hotspot/jtreg/compiler/uncommontrap/TestDeoptOOM.java
index bc0fb1bc9e13..5469e2abbe8c 100644
--- a/test/hotspot/jtreg/compiler/uncommontrap/TestDeoptOOM.java
+++ b/test/hotspot/jtreg/compiler/uncommontrap/TestDeoptOOM.java
@@ -36,7 +36,7 @@
 /*
  * @test
  * @bug 8273456
- * @summary Test that ttyLock isn't held when taking StackWatermark_lock
+ * @summary Test that ttyLock is ranked above StackWatermark_lock
  * @requires !vm.graal.enabled & vm.gc.Z
  * @run main/othervm -XX:-BackgroundCompilation -Xmx128M -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack
  *      -XX:CompileCommand=exclude,compiler.uncommontrap.TestDeoptOOM::main