diff --git a/NEWS b/NEWS
index 05e745390..711ee207c 100644
--- a/NEWS
+++ b/NEWS
@@ -66,6 +66,10 @@ What's new in Sudo 1.9.1
  * Fixed a regression introduced in sudo 1.9.0 where sudoedit did
    not remove its temporary files after installing them.  Bug #929.
 
+ * Fixed a regression introduced in sudo 1.9.0 where the iolog_file
+   setting in sudoers and sudo_logsrvd.conf caused an error if the
+   file name ended in six or more X's.
+
 What's new in Sudo 1.9.0
 
  * Fixed a test failure in the strsig_test regress test on FreeBSD.
diff --git a/lib/iolog/iolog_fileio.c b/lib/iolog/iolog_fileio.c
index 21e35be31..533646b5b 100644
--- a/lib/iolog/iolog_fileio.c
+++ b/lib/iolog/iolog_fileio.c
@@ -74,7 +74,7 @@ io_swapids(bool restore)
     if (user_euid == (uid_t)-1)
 	user_euid = geteuid();
     if (user_egid == (gid_t)-1)
-	user_euid = getegid();
+	user_egid = getegid();
 
     if (restore) {
 	if (seteuid(user_euid) == -1) {