diff --git a/src/node_zlib.cc b/src/node_zlib.cc
index 785c1a9b33..a72e1d1f23 100644
--- a/src/node_zlib.cc
+++ b/src/node_zlib.cc
@@ -149,8 +149,7 @@ class ZCtx : public AsyncWrap {
 
     if (args[1]->IsNull()) {
       // just a flush
-      Bytef nada[1] = { 0 };
-      in = nada;
+      in = nullptr;
       in_len = 0;
       in_off = 0;
     } else {