diff --git a/src/common/Configuration/Config.cpp b/src/common/Configuration/Config.cpp
index d01d3f7b88..0a36e44f35 100644
--- a/src/common/Configuration/Config.cpp
+++ b/src/common/Configuration/Config.cpp
@@ -23,6 +23,7 @@
 #include "Util.h"
 #include <cstdlib>
 #include <fstream>
+#include <iostream>
 #include <mutex>
 #include <unordered_map>