diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 376a50b3452d..10ed539a8859 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -119,6 +119,7 @@ It's also possible to use pmu syntax:
 
  perf record -e r1a8 -a sleep 1
  perf record -e cpu/r1a8/ ...
+ perf record -e cpu/r0x1a8/ ...
 
 You should refer to the processor specific documentation for getting these
 details. Some of them are referenced in the SEE ALSO section below.
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 895188b63f96..5aaddcb0058a 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1766,6 +1766,11 @@ static struct evlist_test test__events_pmu[] = {
 		.check = test__checkevent_raw_pmu,
 		.id    = 4,
 	},
+	{
+		.name  = "software/r0x1a/",
+		.check = test__checkevent_raw_pmu,
+		.id    = 4,
+	},
 };
 
 struct terms_test {
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 56912c9641f5..44c85fea5d00 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -293,6 +293,7 @@ percore			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
 aux-output		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
 aux-sample-size		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
 r{num_raw_hex}		{ return raw(yyscanner); }
+r0x{num_raw_hex}	{ return raw(yyscanner); }
 ,			{ return ','; }
 "/"			{ BEGIN(INITIAL); return '/'; }
 {name_minus}		{ return str(yyscanner, PE_NAME); }