diff --git a/CHANGES b/CHANGES
index 1f770fd..3915cd7 100644
--- a/CHANGES
+++ b/CHANGES
@@ -36,6 +36,10 @@ corrections:
 	Alexandre Fenyo for providing an initial patch.
 	However, the actual fix is part of a conceptual change of the termios
 	module that aims for applying all changes in a single tcsetaddr call.
+	Fixes FreeBSD Bug 198441
+
+	Termios options TAB0,TAB1,TAB2,TAB3, and XTABS did not have an effect.
+	Thanks to Alan Walters for reporting this bug.
 
 testing:
 	test.sh: Show a warning when phase-1 (insecure phase) of a security
diff --git a/xio-termios.c b/xio-termios.c
index 2845247..9a5a8dd 100644
--- a/xio-termios.c
+++ b/xio-termios.c
@@ -80,19 +80,19 @@ const struct optdesc opt_onocr   = { "onocr",   NULL, OPT_ONOCR,   GROUP_TERMIOS
 #endif
 #ifdef TABDLY
 #  ifdef TAB0
-const struct optdesc opt_tab0    = { "tab0",    NULL, OPT_TAB0,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_FLAG, 1, TAB0, TABDLY };
+const struct optdesc opt_tab0    = { "tab0",    NULL, OPT_TAB0,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_PATTERN, 1, TAB0, TABDLY };
 #  endif
 #  ifdef TAB1
-const struct optdesc opt_tab1    = { "tab1",    NULL, OPT_TAB1,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_FLAG, 1, TAB1, TABDLY };
+const struct optdesc opt_tab1    = { "tab1",    NULL, OPT_TAB1,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_PATTERN, 1, TAB1, TABDLY };
 #  endif
 #  ifdef TAB2
-const struct optdesc opt_tab2    = { "tab2",    NULL, OPT_TAB2,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_FLAG, 1, TAB2, TABDLY };
+const struct optdesc opt_tab2    = { "tab2",    NULL, OPT_TAB2,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_PATTERN, 1, TAB2, TABDLY };
 #  endif
 #  ifdef TAB3
-const struct optdesc opt_tab3    = { "tab3",    NULL, OPT_TAB3,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_FLAG, 1, TAB3, TABDLY };
+const struct optdesc opt_tab3    = { "tab3",    NULL, OPT_TAB3,    GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_PATTERN, 1, TAB3, TABDLY };
 #  endif
 #  ifdef XTABS
-const struct optdesc opt_xtabs   = { "xtabs",   NULL, OPT_XTABS,   GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_FLAG, 1, XTABS, TABDLY };
+const struct optdesc opt_xtabs   = { "xtabs",   NULL, OPT_XTABS,   GROUP_TERMIOS, PH_FD, TYPE_CONST, OFUNC_TERMIOS_PATTERN, 1, XTABS, TABDLY };
 #  endif
 #  if TABDLY_SHIFT >= 0
 const struct optdesc opt_tabdly  = { "tabdly",  NULL, OPT_TABDLY,  GROUP_TERMIOS, PH_FD, TYPE_UINT, OFUNC_TERMIOS_VALUE, 1, TABDLY, TABDLY_SHIFT };