diff --git a/python/server/qgsbufferserverrequest.sip b/python/server/qgsbufferserverrequest.sip
index 156fb1c37b3..adc09d356d2 100644
--- a/python/server/qgsbufferserverrequest.sip
+++ b/python/server/qgsbufferserverrequest.sip
@@ -26,7 +26,9 @@ class QgsBufferServerRequest : QgsServerRequest
  Constructor
 
  \param url the url string
- \param method the request method
+ \param method the request method, default to GET
+ \param headers optional dictionary of header name-values
+ \param data optional POST data
 %End
 
     QgsBufferServerRequest( const QUrl &url, QgsServerRequest::Method method = QgsServerRequest::GetMethod, const QgsServerRequest::Headers &headers = QgsServerRequest::Headers(), QByteArray *data = 0 );
@@ -34,7 +36,9 @@ class QgsBufferServerRequest : QgsServerRequest
  Constructor
 
  \param url QUrl
- \param method the request method
+ \param method the request method, default to GET
+ \param headers optional dictionary of header name-values
+ \param data optional POST data
 %End
 
     ~QgsBufferServerRequest();
diff --git a/src/server/qgsbufferserverrequest.h b/src/server/qgsbufferserverrequest.h
index 67cd12854f8..8ebc64b7f60 100644
--- a/src/server/qgsbufferserverrequest.h
+++ b/src/server/qgsbufferserverrequest.h
@@ -39,7 +39,9 @@ class SERVER_EXPORT QgsBufferServerRequest : public QgsServerRequest
     * Constructor
     *
     * \param url the url string
-    * \param method the request method
+    * \param method the request method, default to GET
+    * \param headers optional dictionary of header name-values
+    * \param data optional POST data
     */
     QgsBufferServerRequest( const QString &url, QgsServerRequest::Method method = QgsServerRequest::GetMethod, const QgsServerRequest::Headers &headers = QgsServerRequest::Headers(), QByteArray *data = nullptr );
 
@@ -47,7 +49,9 @@ class SERVER_EXPORT QgsBufferServerRequest : public QgsServerRequest
      * Constructor
      *
      * \param url QUrl
-     * \param method the request method
+     * \param method the request method, default to GET
+     * \param headers optional dictionary of header name-values
+     * \param data optional POST data
      */
     QgsBufferServerRequest( const QUrl &url, QgsServerRequest::Method method = QgsServerRequest::GetMethod, const QgsServerRequest::Headers &headers = QgsServerRequest::Headers(), QByteArray *data = nullptr );