diff --git a/src/api/environment.cc b/src/api/environment.cc
index 95ef13dfb1f4e6..df12331308f399 100644
--- a/src/api/environment.cc
+++ b/src/api/environment.cc
@@ -366,11 +366,6 @@ MultiIsolatePlatform* CreatePlatform(
   return new NodePlatform(thread_pool_size, tracing_controller);
 }
 
-MultiIsolatePlatform* InitializeV8Platform(int thread_pool_size) {
-  per_process::v8_platform.Initialize(thread_pool_size);
-  return per_process::v8_platform.Platform();
-}
-
 void FreePlatform(MultiIsolatePlatform* platform) {
   delete platform;
 }
diff --git a/src/node.h b/src/node.h
index e410068e45dc01..9e35b66ff419e2 100644
--- a/src/node.h
+++ b/src/node.h
@@ -389,7 +389,6 @@ NODE_EXTERN MultiIsolatePlatform* GetMainThreadMultiIsolatePlatform();
 NODE_EXTERN MultiIsolatePlatform* CreatePlatform(
     int thread_pool_size,
     node::tracing::TracingController* tracing_controller);
-MultiIsolatePlatform* InitializeV8Platform(int thread_pool_size);
 NODE_EXTERN void FreePlatform(MultiIsolatePlatform* platform);
 
 NODE_EXTERN void EmitBeforeExit(Environment* env);