diff --git a/message_parsers.cpp b/message_parsers.cpp
index d0fe344..c6dd4f8 100644
--- a/message_parsers.cpp
+++ b/message_parsers.cpp
@@ -366,7 +366,8 @@
     size_t length = packet.size() - integrityAlgo->authCodeLength -
                     message::parser::RMCP_SESSION_HEADER_SIZE;
 
-    return integrityAlgo->verifyIntegrityData(packet, length, integrityIter);
+    return integrityAlgo->verifyIntegrityData(packet, length, integrityIter,
+                                              packet.cend());
 }
 
 void addIntegrityData(std::vector<uint8_t>& packet,