diff --git a/src/config/Config.h b/src/config/Config.h
index 8f3cbbc..ab5cddd 100644
--- a/src/config/Config.h
+++ b/src/config/Config.h
@@ -24,6 +24,7 @@
 
 #include <exception>
 #include <string>
+#include <string>
 #include "../json_support/JSON.h"
 #include "../logger/Logger.h"
 #include "../misc/helpers.h"