diff --git a/src/SharedMemory.h b/src/SharedMemory.h
index c15fef4..4d45ccd 100644
--- a/src/SharedMemory.h
+++ b/src/SharedMemory.h
@@ -2,12 +2,14 @@
 #define SHARED_MEMORY_H
 
 #include "internal.hpp" //NOLINT
+#include <string>
 #include <sys/shm.h>
 
 //ID-Speicherbereich
 //Größe des Speicherbereichs hier 8MB (8000)
 //Shared-Memory-Segment erstellen oder öffnen – shmget()
 constexpr int Max_Memory_Size (8000 * 512);
+const std::string configFile ("../res/config.toml");
 void deleteSharedMemory(int s);
 void deleteSharedMemory();
 void initSharedMemory();
@@ -15,5 +17,5 @@ void getConfig();
 key_t changedKey();
 std::string getAnswerFromUser();
 //Config File
-#define configFile "../res/config.toml"
+
 #endif //SHARED_MEMORY_H