1 files changed, 3 insertions, 1 deletions
diff --git a/src/lib/modes/aead/siv/siv.h b/src/lib/modes/aead/siv/siv.h
index e4454dade..255e4a277 100644
--- a/src/lib/modes/aead/siv/siv.h
+++ b/src/lib/modes/aead/siv/siv.h
@@ -10,11 +10,11 @@
 #define BOTAN_AEAD_SIV_H_
 
 #include <botan/aead.h>
+#include <botan/stream_cipher.h>
 
 namespace Botan {
 
 class BlockCipher;
-class StreamCipher;
 class MessageAuthenticationCode;
 
 /**
@@ -55,6 +55,8 @@ class BOTAN_PUBLIC_API(2,0) SIV_Mode : public AEAD_Mode
    protected:
       explicit SIV_Mode(BlockCipher* cipher);
 
+      ~SIV_Mode();
+
       StreamCipher& ctr() { return *m_ctr; }
 
       void set_ctr_iv(secure_vector<uint8_t> V);