diff --git a/src/utils.cc b/src/utils.cc
index 165855a..40c8b40 100644
--- a/src/utils.cc
+++ b/src/utils.cc
@@ -7,6 +7,7 @@
 
 #include "src/v8.h"
 
+#include "src/base/functional.h"
 #include "src/base/logging.h"
 #include "src/base/platform/platform.h"
 #include "src/utils.h"
@@ -77,6 +78,17 @@
 }
 
 
+size_t hash_value(BailoutId id) {
+  base::hash<int> h;
+  return h(id.id_);
+}
+
+
+std::ostream& operator<<(std::ostream& os, BailoutId id) {
+  return os << id.id_;
+}
+
+
 void PrintF(const char* format, ...) {
   va_list arguments;
   va_start(arguments, format);