1 files changed, 4 insertions, 4 deletions

diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index d14464c42714..7afeb80cc39e 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -224,15 +224,15 @@ event_def: event_pmu |
            event_bpf_file
 
 event_pmu:
-PE_NAME '/' event_config '/'
+PE_NAME opt_event_config
 {
         struct list_head *list, *orig_terms, *terms;
 
-        if (parse_events_copy_term_list($3, &orig_terms))
+        if (parse_events_copy_term_list($2, &orig_terms))
                 YYABORT;
 
         ALLOC_LIST(list);
-        if (parse_events_add_pmu(_parse_state, list, $1, $3, false)) {
+        if (parse_events_add_pmu(_parse_state, list, $1, $2, false)) {
                 struct perf_pmu *pmu = NULL;
                 int ok = 0;
                 char *pattern;
@@ -262,7 +262,7 @@ PE_NAME '/' event_config '/'
                 if (!ok)
                         YYABORT;
         }
-        parse_events_terms__delete($3);
+        parse_events_terms__delete($2);
         parse_events_terms__delete(orig_terms);
         $$ = list;
 }