diff --git a/src/NLPacketCodec.hpp b/src/NLPacketCodec.hpp
index 8a89175..ea66756 100644
--- a/src/NLPacketCodec.hpp
+++ b/src/NLPacketCodec.hpp
@@ -7,6 +7,7 @@
 #include <cstdint>
 #include <vector>
 #include <cstring>
+#include <string>
 
 namespace Overte {