diff --git a/src/node_contextify.cc b/src/node_contextify.cc
index 0752a67326d310..06722624ad6d90 100644
--- a/src/node_contextify.cc
+++ b/src/node_contextify.cc
@@ -81,7 +81,6 @@ using v8::Symbol;
 using v8::Uint32;
 using v8::UnboundScript;
 using v8::Value;
-using v8::WeakCallbackInfo;
 
 // The vm module executes code in a sandboxed environment with a different
 // global object than the rest of the code. This is achieved by applying
@@ -416,12 +415,6 @@ void ContextifyContext::MakeContext(const FunctionCallbackInfo<Value>& args) {
   }
 }
 
-void ContextifyContext::WeakCallback(
-    const WeakCallbackInfo<ContextifyContext>& data) {
-  ContextifyContext* context = data.GetParameter();
-  delete context;
-}
-
 // static
 ContextifyContext* ContextifyContext::ContextFromContextifiedSandbox(
     Environment* env,
diff --git a/src/node_contextify.h b/src/node_contextify.h
index afefe54cbbe4b9..023cdc5d3d8c00 100644
--- a/src/node_contextify.h
+++ b/src/node_contextify.h
@@ -94,8 +94,6 @@ class ContextifyContext : public BaseObject {
       bool produce_cached_data,
       v8::Local<v8::Symbol> id_symbol,
       const errors::TryCatchScope& try_catch);
-  static void WeakCallback(
-      const v8::WeakCallbackInfo<ContextifyContext>& data);
   static v8::Intercepted PropertyGetterCallback(
       v8::Local<v8::Name> property,
       const v8::PropertyCallbackInfo<v8::Value>& args);