diff --git a/agent/agent.h b/agent/agent.h
index 94dd8b8f8..064b7be74 100644
--- a/agent/agent.h
+++ b/agent/agent.h
@@ -619,7 +619,7 @@ static inline int
 divert_tpm2_writekey (ctrl_t ctrl, const unsigned char *grip,
                       gcry_sexp_t s_skey)
 {
-  (void)ctrl; (void)grip; (void)s_key;
+  (void)ctrl; (void)grip; (void)s_skey;
   return gpg_error (GPG_ERR_NOT_SUPPORTED);
 }
 #endif /*!HAVE_LIBTSS*/