diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index c3ffd93f94d7..8914f12d2b85 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -27,7 +27,7 @@ Don't print descriptions.
 
 -v::
 --long-desc::
-Print longer event descriptions.
+Print longer event descriptions and all similar PMUs with alphanumeric suffixes.
 
 --debug::
 Enable debugging output.
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index c19826f218a0..fed482adb039 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -527,7 +527,7 @@ int cmd_list(int argc, const char **argv)
 		OPT_BOOLEAN('d', "desc", &default_ps.desc,
 			    "Print extra event descriptions. --no-desc to not print."),
 		OPT_BOOLEAN('v', "long-desc", &default_ps.long_desc,
-			    "Print longer event descriptions."),
+			    "Print longer event descriptions and all similar PMUs with alphanumeric suffixes."),
 		OPT_BOOLEAN(0, "details", &default_ps.detailed,
 			    "Print information on the perf event names and expressions used internally by events."),
 		OPT_STRING('o', "output", &output_path, "file", "output file name"),