diff --git a/src/option.h b/src/option.h
index bee6442..c86550f 100644
--- a/src/option.h
+++ b/src/option.h
@@ -822,11 +822,13 @@
 EXTERN char_u	*p_tc;		/* 'tagcase' */
 EXTERN unsigned tc_flags;       /* flags from 'tagcase' */
 #ifdef IN_OPTION_C
-static char *(p_tc_values[]) = {"followic", "ignore", "match", NULL};
+static char *(p_tc_values[]) = {"followic", "ignore", "match", "followscs", "smart", NULL};
 #endif
 #define TC_FOLLOWIC		0x01
 #define TC_IGNORE		0x02
 #define TC_MATCH		0x04
+#define TC_FOLLOWSCS		0x08
+#define TC_SMART		0x10
 EXTERN long	p_tl;		/* 'taglength' */
 EXTERN int	p_tr;		/* 'tagrelative' */
 EXTERN char_u	*p_tags;	/* 'tags' */