diff --git a/Demos/src/DrawMapGDI.cpp b/Demos/src/DrawMapGDI.cpp
index 65ce9a958..e6bbfbcc5 100644
--- a/Demos/src/DrawMapGDI.cpp
+++ b/Demos/src/DrawMapGDI.cpp
@@ -25,6 +25,7 @@ src/DrawMapGDI ../maps/nordrhein-westfalen ../stylesheets/standard.oss 51.51241
 */
 
 #include <iostream>
+#include <sstream>
 
 #include <osmscoutmap/MapService.h>