diff --git a/src/Mongodb.php b/src/Mongodb.php
index 09636a6..f5f6344 100644
--- a/src/Mongodb.php
+++ b/src/Mongodb.php
@@ -239,7 +239,7 @@ class Mongodb
         if ($hasContextConnection) {
             $connection = Context::get($this->getContextKey());
         }
-        if (!$connection instanceof MongoDbConnection) {
+        if (!$connection instanceof MongodbConnection) {
             $pool = $this->factory->getPool($this->poolName);
             $connection = $pool->get()->getConnection();
         }