diff --git a/src/node_api.cc b/src/node_api.cc
index f8b0d8b550391f..a6dc4615cab125 100644
--- a/src/node_api.cc
+++ b/src/node_api.cc
@@ -6,6 +6,7 @@
 #include "node_binding.h"
 #include "node_errors.h"
 #include "node_internals.h"
+#include "threadpoolwork-inl.h"
 #include "util-inl.h"
 
 #include <memory>
diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index bbb07e5b48b4a2..f38ed3907dd540 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -33,6 +33,7 @@
 #include "base_object-inl.h"
 #include "env-inl.h"
 #include "string_bytes.h"
+#include "threadpoolwork-inl.h"
 #include "util-inl.h"
 #include "v8.h"
 
diff --git a/src/node_internals.h b/src/node_internals.h
index 91cc0efd508d8c..588941f127a754 100644
--- a/src/node_internals.h
+++ b/src/node_internals.h
@@ -255,27 +255,6 @@ class ThreadPoolWork {
   uv_work_t work_req_;
 };
 
-void ThreadPoolWork::ScheduleWork() {
-  env_->IncreaseWaitingRequestCounter();
-  int status = uv_queue_work(
-      env_->event_loop(),
-      &work_req_,
-      [](uv_work_t* req) {
-        ThreadPoolWork* self = ContainerOf(&ThreadPoolWork::work_req_, req);
-        self->DoThreadPoolWork();
-      },
-      [](uv_work_t* req, int status) {
-        ThreadPoolWork* self = ContainerOf(&ThreadPoolWork::work_req_, req);
-        self->env_->DecreaseWaitingRequestCounter();
-        self->AfterThreadPoolWork(status);
-      });
-  CHECK_EQ(status, 0);
-}
-
-int ThreadPoolWork::CancelWork() {
-  return uv_cancel(reinterpret_cast<uv_req_t*>(&work_req_));
-}
-
 #define TRACING_CATEGORY_NODE "node"
 #define TRACING_CATEGORY_NODE1(one)                                           \
     TRACING_CATEGORY_NODE ","                                                 \
diff --git a/src/node_zlib.cc b/src/node_zlib.cc
index f389257882215e..d816c7caff9e3c 100644
--- a/src/node_zlib.cc
+++ b/src/node_zlib.cc
@@ -24,6 +24,7 @@
 
 #include "async_wrap-inl.h"
 #include "env-inl.h"
+#include "threadpoolwork-inl.h"
 #include "util-inl.h"
 
 #include "v8.h"
diff --git a/src/threadpoolwork-inl.h b/src/threadpoolwork-inl.h
new file mode 100644
index 00000000000000..8bba988b18db0f
--- /dev/null
+++ b/src/threadpoolwork-inl.h
@@ -0,0 +1,57 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#ifndef SRC_THREADPOOLWORK_INL_H_
+#define SRC_THREADPOOLWORK_INL_H_
+
+#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#include "util-inl.h"
+#include "node_internals.h"
+
+namespace node {
+
+void ThreadPoolWork::ScheduleWork() {
+  env_->IncreaseWaitingRequestCounter();
+  int status = uv_queue_work(
+      env_->event_loop(),
+      &work_req_,
+      [](uv_work_t* req) {
+        ThreadPoolWork* self = ContainerOf(&ThreadPoolWork::work_req_, req);
+        self->DoThreadPoolWork();
+      },
+      [](uv_work_t* req, int status) {
+        ThreadPoolWork* self = ContainerOf(&ThreadPoolWork::work_req_, req);
+        self->env_->DecreaseWaitingRequestCounter();
+        self->AfterThreadPoolWork(status);
+      });
+  CHECK_EQ(status, 0);
+}
+
+int ThreadPoolWork::CancelWork() {
+  return uv_cancel(reinterpret_cast<uv_req_t*>(&work_req_));
+}
+
+}  // namespace node
+
+#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#endif  // SRC_THREADPOOLWORK_INL_H_