diff --git a/Source/JavaScriptCore/jit/JIT.h b/Source/JavaScriptCore/jit/JIT.h
index fc8f6d3..95f7b9c 100644
--- a/Source/JavaScriptCore/jit/JIT.h
+++ b/Source/JavaScriptCore/jit/JIT.h
@@ -165,6 +165,7 @@
         MacroAssembler::Call hotPathOther;
         MacroAssembler::Call callReturnLocation;
         bool isCall;
+        unsigned bytecodeIndex;
     };
 
     struct MethodCallCompilationInfo {