diff --git a/libwvdrmengine/level3/include/haystack.h b/libwvdrmengine/level3/include/haystack.h
index 6035342e..f512129e 100644
--- a/libwvdrmengine/level3/include/haystack.h
+++ b/libwvdrmengine/level3/include/haystack.h
@@ -111,9 +111,7 @@ OEMCryptoResult Haystack_LoadLicense_V18(OEMCrypto_SESSION session,
                                          const uint8_t* signature,
                                          size_t signature_length);
 OEMCryptoResult Haystack_SetDecryptHash(OEMCrypto_SESSION session,
-                                        uint32_t frame_number,
-                                        const uint8_t* hash,
-                                        size_t hash_length);
+                                        uint32_t frame_number, uint32_t crc32);
 OEMCryptoResult Haystack_GetHashErrorCode(OEMCrypto_SESSION session,
                                           uint32_t* failed_frame_number);
 OEMCryptoResult Haystack_BuildInformation(char* buffer, size_t* buffer_length);
diff --git a/libwvdrmengine/level3/src/level3_adapter.cpp b/libwvdrmengine/level3/src/level3_adapter.cpp
index f4e5ce37..7756c61c 100644
--- a/libwvdrmengine/level3/src/level3_adapter.cpp
+++ b/libwvdrmengine/level3/src/level3_adapter.cpp
@@ -250,10 +250,8 @@ OEMCryptoResult Level3_LoadLicense_V18(OEMCrypto_SESSION session,
 }
 
 OEMCryptoResult Level3_SetDecryptHash(OEMCrypto_SESSION session,
-                                      uint32_t frame_number,
-                                      const uint8_t* hash, size_t hash_length) {
-  return haystack::Haystack_SetDecryptHash(session, frame_number, hash,
-                                           hash_length);
+                                      uint32_t frame_number, uint32_t crc32) {
+  return haystack::Haystack_SetDecryptHash(session, frame_number, crc32);
 }
 
 OEMCryptoResult Level3_GetHashErrorCode(OEMCrypto_SESSION session,