diff --git a/srtcore/crypto.cpp b/srtcore/crypto.cpp
index 3c09570a1..cbb8327c9 100644
--- a/srtcore/crypto.cpp
+++ b/srtcore/crypto.cpp
@@ -839,6 +839,7 @@ EncryptionStatus CCryptoControl::decrypt(ref_t<CPacket> r_packet SRT_ATR_UNUSED)
 CCryptoControl::~CCryptoControl()
 {
 #ifdef SRT_ENABLE_ENCRYPTION
+    close();
     if (m_hSndCrypto)
     {
         HaiCrypt_Close(m_hSndCrypto);