diff --git a/include/ur_rtde_driver/ros/hardware_interface.h b/include/ur_rtde_driver/ros/hardware_interface.h
index 874cf34..1ef712e 100644
--- a/include/ur_rtde_driver/ros/hardware_interface.h
+++ b/include/ur_rtde_driver/ros/hardware_interface.h
@@ -50,7 +50,7 @@ public:
   virtual void doSwitch(const std::list<hardware_interface::ControllerInfo>& start_list,
                         const std::list<hardware_interface::ControllerInfo>& stop_list) override;
 
-  const uint32_t getControlFrequency() const;
+  uint32_t getControlFrequency() const;
 
 protected:
   std::unique_ptr<UrDriver> ur_driver_;
diff --git a/src/ros/hardware_interface.cpp b/src/ros/hardware_interface.cpp
index fad3d34..c2e1893 100644
--- a/src/ros/hardware_interface.cpp
+++ b/src/ros/hardware_interface.cpp
@@ -131,7 +131,7 @@ void HardwareInterface ::doSwitch(const std::list<hardware_interface::Controller
   }
 }
 
-const uint32_t HardwareInterface ::getControlFrequency() const
+uint32_t HardwareInterface ::getControlFrequency() const
 {
   if (ur_driver_ != nullptr)
   {