diff --git a/1.3/HalPolicy.hpp b/1.3/HalPolicy.hpp
index c601942..b59710a 100644
--- a/1.3/HalPolicy.hpp
+++ b/1.3/HalPolicy.hpp
@@ -117,6 +117,8 @@
 
     static bool ConvertQuantizedLstm(const Operation& operation, const Model& model, ConversionData& data);
 
+    static bool ConvertQuantized16BitLstm(const Operation& operation, const Model& model, ConversionData& data);
+
     static bool ConvertReLu(const Operation& operation, const Model& model, ConversionData& data);
 
     static bool ConvertReLu1(const Operation& operation, const Model& model, ConversionData& data);