diff --git a/python/analysis/network/qgslinevectorlayerdirector.sip b/python/analysis/network/qgslinevectorlayerdirector.sip
index 5580ca7f195..6e1ce9c4745 100644
--- a/python/analysis/network/qgslinevectorlayerdirector.sip
+++ b/python/analysis/network/qgslinevectorlayerdirector.sip
@@ -11,14 +11,14 @@ class QgsLineVectorLayerDirector : QgsGraphDirector
 
   public:
     /**
-     * @param layerId
+     * @param myLayer source vector layer
      * @param directionFieldId feield contain road direction value
      * @param directDirectionValue value for one-way road
      * @param reverseDirectionValue value for reverse one-way road
      * @param bothDirectionValue value for road
      * @param defaultDirection 1 - direct direction, 2 - reverse direction, 3 - both direction
      */
-    QgsLineVectorLayerDirector( const QString& layerId,
+    QgsLineVectorLayerDirector( QgsVectorLayer* myLayer,
                                int directionFieldId,
                                const QString& directDirectionValue,
                                const QString& reverseDirectionValue,