diff --git a/src/detail/challenge-encoder.cpp b/src/detail/challenge-encoder.cpp
index de7e3cc..083fa61 100644
--- a/src/detail/challenge-encoder.cpp
+++ b/src/detail/challenge-encoder.cpp
@@ -51,7 +51,7 @@
 }
 
 void
-challengetlv::decodeDataContent(const Block& contentBlock, requester::RequestState& state)
+challengetlv::decodeDataContent(const Block& contentBlock, requester::Request& state)
 {
   auto result = decodeBlockWithAesGcm128(contentBlock, state.aesKey.data(),
                                          state.requestId.data(), state.requestId.size(),