diff --git a/include/rapidjson/stringbuffer.h b/include/rapidjson/stringbuffer.h
index 6ffc1e0..db00af3 100644
--- a/include/rapidjson/stringbuffer.h
+++ b/include/rapidjson/stringbuffer.h
@@ -22,6 +22,11 @@
 #define RAPIDJSON_STRINGBUFFER_H_
 
 #include "rapidjson.h"
+
+#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
+#include <utility> // std::move
+#endif
+
 #include "internal/stack.h"
 
 RAPIDJSON_NAMESPACE_BEGIN