diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 781416ba6bdf..127880ebe83f 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -511,7 +511,7 @@ predicate_parse(const char *str, int nr_parens, int nr_preds,
 
 		switch (*next) {
 		case '(':					/* #2 */
-			if (top - op_stack > nr_parens) {
+			if (top - op_stack >= nr_parens - 1) {
 				ret = -EINVAL;
 				goto out_free;
 			}