1 files changed, 1 insertions, 0 deletions
diff --git a/rc2.h b/rc2.h
index 90c2a060..ebff798f 100644
--- a/rc2.h
+++ b/rc2.h
@@ -25,6 +25,7 @@ class RC2 : public RC2_Info, public BlockCipherDocumentation
 	{
 	public:
 		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
+		unsigned int OptimalDataAlignment() const {return GetAlignmentOf<word16>();}
 
 	protected:
 		FixedSizeSecBlock<word16, 64> K;  // expanded key table