diff --git a/extensions/mongo/Collection.php b/extensions/mongo/Collection.php
index 7292348..5f7246c 100644
--- a/extensions/mongo/Collection.php
+++ b/extensions/mongo/Collection.php
@@ -242,7 +242,13 @@ class Collection extends Object
 			if (is_numeric($key)) {
 				$result[] = $actualValue;
 			} else {
-				$result[$this->normalizeConditionKeyword($key)] = $actualValue;
+				$key = $this->normalizeConditionKeyword($key);
+				if (strncmp('$', $key, 1) !== 0 && array_key_exists(0, $actualValue)) {
+					// shortcut for IN condition
+					$result[$key]['$in'] = $actualValue;
+				} else {
+					$result[$key] = $actualValue;
+				}
 			}
 		}
 		return $result;
diff --git a/tests/unit/extensions/mongo/QueryRunTest.php b/tests/unit/extensions/mongo/QueryRunTest.php
index b36851a..f8821b6 100644
--- a/tests/unit/extensions/mongo/QueryRunTest.php
+++ b/tests/unit/extensions/mongo/QueryRunTest.php
@@ -75,9 +75,7 @@ class QueryRunTest extends MongoTestCase
 		$query = new Query;
 		$rows = $query->from('customer')
 			->where([
-				'name' => [
-					'in' => ['name1', 'name5']
-				]
+				'name' => ['name1', 'name5']
 			])
 			->all($connection);
 		$this->assertEquals(2, count($rows));