diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index 360b80f93e..8e3f015dff 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -53,6 +53,11 @@
           'BUILDING_V8_SHARED',  # Make V8_EXPORT visible.
         ],
       }],
+      ['node_shared=="true"', {
+        'defines': [
+          'V8_TLS_USED_IN_LIBRARY',  # Enable V8_TLS_LIBRARY_MODE.
+        ],
+      }],
     ],
   },
   'targets': [