diff --git a/sch2fig/sch.c b/sch2fig/sch.c
index 32cedc0..669d4fc 100644
--- a/sch2fig/sch.c
+++ b/sch2fig/sch.c
@@ -328,6 +328,8 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
 			return 1;
 		if (parse_field(ctx, line))
 			return 1;
+		if (sscanf(line, "AR %n", &n) == 0 && n)
+			return 1; /* @@@ what is "AR" ? */
 		n = sscanf(line, " %d %d %d %d", m + 1, m + 2, m + 4, m + 5);
 		if (n == 3)
 			return 1;