diff --git a/Source/JavaScriptCore/jit/JITInlines.h b/Source/JavaScriptCore/jit/JITInlines.h
index cfc0abb..ce07286 100644
--- a/Source/JavaScriptCore/jit/JITInlines.h
+++ b/Source/JavaScriptCore/jit/JITInlines.h
@@ -437,7 +437,7 @@
 inline JITArrayMode JIT::chooseArrayMode(ArrayProfile* profile)
 {
 #if ENABLE(VALUE_PROFILER)
-    CodeBlockLocker locker(m_codeBlock->m_lock);
+    ConcurrentJITLocker locker(m_codeBlock->m_lock);
     profile->computeUpdatedPrediction(locker, m_codeBlock);
     ArrayModes arrayModes = profile->observedArrayModes(locker);
     if (arrayProfileSaw(arrayModes, DoubleShape))