diff --git a/src/cpp/JSONInterface/JsonGetLogin.h b/src/cpp/JSONInterface/JsonGetLogin.h
index e80435e25..56e1cc1a7 100644
--- a/src/cpp/JSONInterface/JsonGetLogin.h
+++ b/src/cpp/JSONInterface/JsonGetLogin.h
@@ -2,6 +2,7 @@
 #define __JSON_INTERFACE_JSON_GET_LOGIN_
 
 #include "JsonRequestHandler.h"
+#include "Poco/Dynamic/Var.h"
 
 class JsonGetLogin : public JsonRequestHandler
 {