diff --git a/src/helper/mobility-helper.cc b/src/helper/mobility-helper.cc
index 1b71b3f14..34ad62e81 100644
--- a/src/helper/mobility-helper.cc
+++ b/src/helper/mobility-helper.cc
@@ -46,12 +46,7 @@ MobilityHelper::SetPositionAllocator (Ptr<PositionAllocator> allocator)
 {
   m_position = allocator;
 }
-void 
-MobilityHelper::SetPositionAllocator (std::string allocatorName)
-{
-  Ptr<PositionAllocator> allocator = Names::Find<PositionAllocator> (allocatorName);
-  m_position = allocator;
-}
+
 void 
 MobilityHelper::SetPositionAllocator (std::string type,
                                       std::string n1, const AttributeValue &v1,
diff --git a/src/helper/mobility-helper.h b/src/helper/mobility-helper.h
index 011b5e8c3..99d4e9b61 100644
--- a/src/helper/mobility-helper.h
+++ b/src/helper/mobility-helper.h
@@ -50,13 +50,6 @@ public:
    * \param allocator allocate initial node positions
    */
   void SetPositionAllocator (Ptr<PositionAllocator> allocator);
-  /**
-   * Set the position allocator which will be used to allocate the initial 
-   * position of every node initialized during MobilityModel::Install.
-   *
-   * \param allocator allocate initial node positions
-   */
-  void SetPositionAllocator (std::string allocatorName);
 
   /**
    * \param type the type of mobility model to use.