diff --git a/js/src/vtune/README b/js/src/vtune/README
index 3bd5f9fefa14..212078b4e333 100644
--- a/js/src/vtune/README
+++ b/js/src/vtune/README
@@ -14,6 +14,8 @@ Additionally, the following changes should be propagated:
       or Ubuntu shell builds will randomly crash on startup.
     - With weak attributes removed, DL_SYMBOLS and PTHREAD_SYMBOLS should
       be defined as "(1)" to avoid -Waddress warnings.
+    - Per Bug 1377651, the __itt_null variable in ittnotify.h should be
+      made non-static, so it can be used in a non-static function.
 
 If the license has changed, update the "VTune License" section of
     toolkit/content/license.html
diff --git a/js/src/vtune/ittnotify.h b/js/src/vtune/ittnotify.h
index c52490239c6d..f1d65b3328bc 100644
--- a/js/src/vtune/ittnotify.h
+++ b/js/src/vtune/ittnotify.h
@@ -1812,7 +1812,7 @@ typedef struct ___itt_id
 #pragma pack(pop)
 /** @endcond */
 
-static const __itt_id __itt_null = { 0, 0, 0 };
+const __itt_id __itt_null = { 0, 0, 0 };
 
 /**
  * @ingroup ids