From fd9f43dd74ba127c3633ab0d6d6bb660144ade6f Mon Sep 17 00:00:00 2001
From: Neal Beeken <neal.beeken@mongodb.com>
Date: Mon, 11 Jan 2021 10:21:31 -0500
Subject: [PATCH] fix: correct typeof check in checkSupportedServer

---
 src/cmap/connect.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cmap/connect.ts b/src/cmap/connect.ts
index 0d324c5418e..5673180dceb 100644
--- a/src/cmap/connect.ts
+++ b/src/cmap/connect.ts
@@ -41,7 +41,7 @@ function checkSupportedServer(ismaster: Document, options: ConnectionOptions) {
     ismaster.maxWireVersion >= MIN_SUPPORTED_WIRE_VERSION;
   const serverVersionLowEnough =
     ismaster &&
-    (typeof ismaster.maxWireVersion === 'number' || ismaster.maxWireVersion instanceof Int32) &&
+    (typeof ismaster.minWireVersion === 'number' || ismaster.minWireVersion instanceof Int32) &&
     ismaster.minWireVersion <= MAX_SUPPORTED_WIRE_VERSION;
 
   if (serverVersionHighEnough) {