diff --git a/source/RobotAPI/libraries/armem_gui/MemoryViewer.h b/source/RobotAPI/libraries/armem_gui/MemoryViewer.h
index f9ceb7471fbc268e6649ba583b2bd67e530a3992..8bbea41e87073b6a49ca0492b01ab6d65eadc3dc 100644
--- a/source/RobotAPI/libraries/armem_gui/MemoryViewer.h
+++ b/source/RobotAPI/libraries/armem_gui/MemoryViewer.h
@@ -144,15 +144,11 @@ namespace armarx::armem::gui
         std::string mnsName;
         armem::client::MemoryNameSystem mns;
 
-        mutable std::recursive_mutex memoryReaderMutex;
-        mutable std::recursive_mutex memoryWriterMutex;
         std::map<std::string, armem::client::Reader> memoryReaders;
         std::map<std::string, armem::client::Writer> memoryWriters;
 
-        mutable std::recursive_mutex memoryDataMutex;
         std::map<std::string, armem::wm::Memory> memoryData;
 
-        mutable std::recursive_mutex runningQueriesMutex;
         std::map<std::string, std::future<armem::query::data::Result>> runningQueries;
 
         /// Periodically triggers query result collection and updates the available memories