diff --git a/source/RobotAPI/components/units/KinematicUnitObserver.cpp b/source/RobotAPI/components/units/KinematicUnitObserver.cpp
index c1796936e47e97e06b6a923a4ca6832bcdf81f40..1dacd798cc3feb30b0fb04b283b0d9ebb3eb2ae4 100644
--- a/source/RobotAPI/components/units/KinematicUnitObserver.cpp
+++ b/source/RobotAPI/components/units/KinematicUnitObserver.cpp
@@ -297,7 +297,7 @@ namespace armarx
         if (aValueChanged || newChannel)
         {
 
-            boost::unordered_map< ::std::string, ::armarx::VariantBasePtr> map;
+            std::unordered_map< ::std::string, ::armarx::VariantBasePtr> map;
             if (timestamp < 0)
             {
                 for (const auto& it : nameValueMap)