diff --git a/source/RobotAPI/components/units/RobotUnit/Devices/SensorDevice.h b/source/RobotAPI/components/units/RobotUnit/Devices/SensorDevice.h
index 1d1b5d255d3bf9fb139013ce65cfb73b9830e360..16c92933f171e17f3278c787515b6481636b72b5 100644
--- a/source/RobotAPI/components/units/RobotUnit/Devices/SensorDevice.h
+++ b/source/RobotAPI/components/units/RobotUnit/Devices/SensorDevice.h
@@ -26,7 +26,6 @@
 #include"DeviceBase.h"
 #include "../SensorValues/SensorValueBase.h"
 #include "../util.h"
-
 #include <IceUtil/Time.h>
 
 namespace armarx
diff --git a/source/RobotAPI/components/units/RobotUnit/RobotUnit.h b/source/RobotAPI/components/units/RobotUnit/RobotUnit.h
index 1a187b86a6e3d04d680f0e78052521f22e8aa548..1c36cd039986ff7f6c75845e6d5567309110da4b 100644
--- a/source/RobotAPI/components/units/RobotUnit/RobotUnit.h
+++ b/source/RobotAPI/components/units/RobotUnit/RobotUnit.h
@@ -355,6 +355,7 @@ namespace armarx
             // prints every 1.5 seconds the message "foo 42 bar 24" to ARMARX_IMPORTANT
             ARMARX_RT_LOGF_IMPORTANT("foo %d bar %d\n", 42, 24).deactivateSpam(1.5);
      * \endcode
+     * \note It is not possible to print out strings this would need memory allocation.
      *
      * If an error occours, it is possible to print all recent messages (even the deactivated messages)
      * to a file by calling the ice interface function \ref RobotUnitInterface::writeRecentIterationsToFile.