1diff --git a/src/configuration.h b/src/configuration.h 2index 34fd690..97fb0e5 100644 3--- a/src/configuration.h 4+++ b/src/configuration.h 5@@ -2,6 +2,7 @@ 6 #define CONFIGURATION_H 7 8 #include <map> 9+#include <string> 10 11 namespace config 12 {