diff --git a/lib/internal/child_process/serialization.js b/lib/internal/child_process/serialization.js
index df645d9a05c2d8..c5ac2cbae8c5f8 100644
--- a/lib/internal/child_process/serialization.js
+++ b/lib/internal/child_process/serialization.js
@@ -71,7 +71,12 @@ const advanced = {
     while (messageBufferHead.length >= 4) {
       // We call `readUInt32BE` manually here, because this is faster than first converting
       // it to a buffer and using `readUInt32BE` on that.
-      const fullMessageSize = ReflectApply(readUInt32BE, messageBufferHead, [0]) + 4;
+      const fullMessageSize = (
+          messageBufferHead[0] << 24 |
+          messageBufferHead[1] << 16 |
+          messageBufferHead[2] << 8 |
+          messageBufferHead[3]
+        ) + 4;
 
       if (channel[kMessageBufferSize] < fullMessageSize) break;