diff --git a/src/Magnum/SceneTools/Implementation/sceneConverterUtilities.h b/src/Magnum/SceneTools/Implementation/sceneConverterUtilities.h
index 551cf0576..24c827365 100644
--- a/src/Magnum/SceneTools/Implementation/sceneConverterUtilities.h
+++ b/src/Magnum/SceneTools/Implementation/sceneConverterUtilities.h
@@ -26,6 +26,7 @@
 */
 
 #include <cctype> /* std::isupper() */
+#include <sstream>
 #include <unordered_map> /* sceneFieldNames */
 #include <Corrade/Containers/Optional.h>
 #include <Corrade/Containers/Pair.h>