1 files changed, 1 insertions, 1 deletions
diff --git a/cypher.h b/cypher.h
index a0ab6e4..b60306e 100644
--- a/cypher.h
+++ b/cypher.h
@@ -46,7 +46,7 @@ protected:
   virtual Buffer getBitStream(u_int32_t length) = 0;
 };
 
-class NullCypher : Cypher
+class NullCypher : public Cypher
 {
 protected:
   Buffer getBitStream(u_int32_t length);