diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index 4b859a154a2ec0..7e4d3073e9f212 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -391,7 +391,7 @@ function _writeRaw(data, encoding, callback, size) {
   }
 
   // TODO(sidwebworks): flip the `strictContentLength` default to `true` in a future PR
-  if (this.strictContentLength && size != null && conn && conn.writable && !this._removedContLen && this._hasBody) {
+  if (this.strictContentLength && size != null && !this._removedContLen && this._hasBody) {
     const skip = conn._httpMessage.statusCode === 304 || (this.hasHeader('transfer-encoding') || this.chunkedEncoding);
 
     if (typeof this._contentLength === 'number' && !skip) {