1 files changed, 1 insertions, 1 deletions
diff --git a/g10/call-agent.h b/g10/call-agent.h
index c4d0a9de1..5512fc847 100644
--- a/g10/call-agent.h
+++ b/g10/call-agent.h
@@ -72,7 +72,7 @@ struct agent_card_info_s
     unsigned int bt:1;     /* Button for confirmation available.  */
   } extcap;
   unsigned int status_indicator;
-  int kdf_do_enabled;      /* True if card has a KDF object.  */
+  int kdf_do_enabled;      /* Non-zero if card has a KDF object, 0 if not.  */
   int uif[3];              /* True if User Interaction Flag is on.  */
 };