diff --git a/modules/swagger-codegen/src/main/resources/php/Swagger.mustache b/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
index a7a18866345..d797bb53e9e 100644
--- a/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
+++ b/modules/swagger-codegen/src/main/resources/php/Swagger.mustache
@@ -107,6 +107,9 @@ class APIClient {
     if ($method == self::$POST) {
       curl_setopt($curl, CURLOPT_POST, true);
       curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);
+    } else if ($method == self::$PATCH) {
+      curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PATCH");
+      curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);
     } else if ($method == self::$PUT) {
       curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
       curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);