diff --git a/src/input/api/DSU/DSUMessages.cpp b/src/input/api/DSU/DSUMessages.cpp
index f92c1e3f..34065add 100644
--- a/src/input/api/DSU/DSUMessages.cpp
+++ b/src/input/api/DSU/DSUMessages.cpp
@@ -16,7 +16,14 @@ void MessageHeader::Finalize(size_t size)
 
 uint32_t MessageHeader::CRC32(size_t size) const
 {
-	return crc32_calc(this, size);
+	uint32_t tmp, tmp2;
+
+	tmp = m_crc32;
+	m_crc32 = 0;
+	tmp2 = crc32_calc(this, size);
+	m_crc32 = tmp;
+
+	return tmp2;
 }
 
 bool MessageHeader::IsClientMessage() const { return m_magic == kMagicClient; }