Fixing the %a format.

1 files changed, 2 insertions, 1 deletions

diff --git a/hdrline.c b/hdrline.c
index 6008282c..5f8ddf9d 100644
--- a/hdrline.c
+++ b/hdrline.c
@@ -189,7 +189,8 @@ hdr_format_str (char *dest,
 	snprintf (fmt, sizeof (fmt), "%%%ss", prefix);
 	snprintf (dest, destlen, fmt, hdr->env->from->mailbox);
       }
-      dest[0] = '\0';
+      else
+        dest[0] = '\0';
       break;
 
     case 'B':