diff --git a/1.2/HalPolicy.hpp b/1.2/HalPolicy.hpp
index 4b1ab07..a268b3d 100644
--- a/1.2/HalPolicy.hpp
+++ b/1.2/HalPolicy.hpp
@@ -57,6 +57,8 @@
 
     static bool ConvertQuantize(const Operation& operation, const Model& model, ConversionData& data);
 
+    static bool ConvertQuantizedLstm(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);