diff --git a/include/export/jwtpp/jwtpp.hh b/include/export/jwtpp/jwtpp.hh
index 627d702..cd987f9 100644
--- a/include/export/jwtpp/jwtpp.hh
+++ b/include/export/jwtpp/jwtpp.hh
@@ -26,6 +26,7 @@
 #include <functional>
 #include <vector>
 #include <string>
+#include <sstream>
 
 #include <json/json.h>