1 files changed, 1 insertions, 1 deletions
diff --git a/authAlgo.h b/authAlgo.h
index 4177525..2c420e2 100644
--- a/authAlgo.h
+++ b/authAlgo.h
@@ -43,7 +43,7 @@ public:
   virtual auth_tag_t calc(const Buffer& buf) = 0;
 };
 
-class NullAuthAlgo : AuthAlgo
+class NullAuthAlgo : public AuthAlgo
 {
 public:
   auth_tag_t calc(const Buffer& buf);