diff --git a/src/include/3270ds.h b/src/include/3270ds.h
index aed8344..b80aa4a 100644
--- a/src/include/3270ds.h
+++ b/src/include/3270ds.h
@@ -20,10 +20,9 @@
  * file LICENSE for more details.
  */
 
-/*
- *	3270ds.h
- *
- *		Header file for the 3270 Data Stream Protocol.
+/**
+ *	@file 3270ds.h
+ *	@brief Header file for the 3270 Data Stream Protocol.
  */
 
 /* 3270 commands */
diff --git a/src/lib3270/connect.c b/src/lib3270/connect.c
index 43b9533..0c8a76f 100644
--- a/src/lib3270/connect.c
+++ b/src/lib3270/connect.c
@@ -101,8 +101,10 @@ static int background_ssl_crl_check(H3270 *hSession, void *ssl_error)
 	{
 		if(ssl_error.description)
 			lib3270_popup_dialog(hSession, LIB3270_NOTIFY_ERROR, ssl_error.title, ssl_error.text, "%s", ssl_error.description);
-		else
+		else if(ssl_error.error)
 			lib3270_popup_dialog(hSession, LIB3270_NOTIFY_ERROR, ssl_error.title, ssl_error.text, "%s", ERR_reason_error_string(ssl_error.error));
+		else
+			lib3270_popup_dialog(hSession, LIB3270_NOTIFY_ERROR, ssl_error.title, ssl_error.text, "%s","");
 
 		return errno = rc;
 	}
--
libgit2 0.21.2