diff --git a/src/proto/syntax.pro b/src/proto/syntax.pro
index 12dc9de..7ae13e9 100644
--- a/src/proto/syntax.pro
+++ b/src/proto/syntax.pro
@@ -15,7 +15,7 @@
 void set_context_in_syntax_cmd __ARGS((expand_T *xp, char_u *arg));
 char_u *get_syntax_name __ARGS((expand_T *xp, int idx));
 int syn_get_id __ARGS((win_T *wp, long lnum, colnr_T col, int trans, int *spellp, int keep_state));
-int get_syntax_info __ARGS((int *idp));
+int get_syntax_info __ARGS((int *seqnrp));
 int syn_get_sub_char __ARGS((void));
 int syn_get_stack_item __ARGS((int i));
 int syn_get_foldlevel __ARGS((win_T *wp, long lnum));