diff --git a/src/configfilemanager.h b/src/configfilemanager.h
index 49a836d..d9e671a 100644
--- a/src/configfilemanager.h
+++ b/src/configfilemanager.h
@@ -6,11 +6,14 @@
 #include <vector>
 #include <fstream>
 #include <iostream>
+#include <mutex>
 #include "definitions.h"
 
 class configfilemanager{
 private:
     std::map<std::string, std::string> configs;
+    std::mutex mtx;
+
 
 public:
     configfilemanager(std::string filepath = "./ncsambawatcher.config")
@@ -44,6 +47,7 @@ public:
 
     std::string at(const std::string &config)
     {
+        std::lock_guard<std::mutex> lock(mtx);
         return configs.at(config);
     }