diff --git a/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache b/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache
index ff602e48338..8c8b10a3934 100644
--- a/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache
+++ b/modules/openapi-generator/src/main/resources/php-nextgen/ObjectSerializer.mustache
@@ -417,10 +417,7 @@ class ObjectSerializer
             return $deserialized;
         }
 
-        if ($class === 'object') {
-            settype($data, 'array');
-            return $data;
-        } elseif ($class === 'mixed') {
+        if ($class === 'mixed') {
             settype($data, gettype($data));
             return $data;
         }
diff --git a/samples/client/echo_api/php-nextgen/src/ObjectSerializer.php b/samples/client/echo_api/php-nextgen/src/ObjectSerializer.php
index d998ebb2ad8..b71e9270209 100644
--- a/samples/client/echo_api/php-nextgen/src/ObjectSerializer.php
+++ b/samples/client/echo_api/php-nextgen/src/ObjectSerializer.php
@@ -427,10 +427,7 @@ class ObjectSerializer
             return $deserialized;
         }
 
-        if ($class === 'object') {
-            settype($data, 'array');
-            return $data;
-        } elseif ($class === 'mixed') {
+        if ($class === 'mixed') {
             settype($data, gettype($data));
             return $data;
         }
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/ObjectSerializer.php b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/ObjectSerializer.php
index 69bc6074cd2..81f07e6f974 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/ObjectSerializer.php
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/ObjectSerializer.php
@@ -426,10 +426,7 @@ class ObjectSerializer
             return $deserialized;
         }
 
-        if ($class === 'object') {
-            settype($data, 'array');
-            return $data;
-        } elseif ($class === 'mixed') {
+        if ($class === 'mixed') {
             settype($data, gettype($data));
             return $data;
         }