diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index edf6928c9a0c52c07cff78a9ae2b170a82358834..a6fb347e27afcfb85d5ceaf78b39e0d8e05396c1 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -528,6 +528,7 @@ static inline bool armv8pmu_event_is_chained(struct perf_event *event)
 		PMEVN_CASE(17, case_macro);			\
 		PMEVN_CASE(18, case_macro);			\
 		PMEVN_CASE(19, case_macro);			\
+		PMEVN_CASE(20, case_macro);			\
 		PMEVN_CASE(21, case_macro);			\
 		PMEVN_CASE(22, case_macro);			\
 		PMEVN_CASE(23, case_macro);			\