diff --git a/source/RobotAPI/libraries/armem/server/ltm/processors/filter/frequencyFilter/FrequencyFilter.cpp b/source/RobotAPI/libraries/armem/server/ltm/processors/filter/frequencyFilter/FrequencyFilter.cpp
index 75c5bd5e5a30d1968d67f8a9de39d3a29ce30ca2..19bfb3c3242386018c517d358c13fb8c4fe675ef 100644
--- a/source/RobotAPI/libraries/armem/server/ltm/processors/filter/frequencyFilter/FrequencyFilter.cpp
+++ b/source/RobotAPI/libraries/armem/server/ltm/processors/filter/frequencyFilter/FrequencyFilter.cpp
@@ -36,9 +36,9 @@ namespace armarx::armem::server::ltm::processor::filter
 
                     if(instances_accepted){
                         lastTime = current;
-                        stats.accepted += 1;
+                        this->stats.accepted += 1;
                     } else {
-                        stats.rejected += 1;
+                        this->stats.rejected += 1;
                     }
                     return instances_accepted;
     }