diff --git a/fio.1 b/fio.1
index 0cf12fc..ce08ff2 100644
--- a/fio.1
+++ b/fio.1
@@ -1114,6 +1114,10 @@
 .RS
 .B min, max, mean, standard deviation
 .RE
+Completion latency percentiles (20 fields):
+.RS
+.B Xth percentile=usec
+.RE
 Total latency:
 .RS
 .B min, max, mean, standard deviation
@@ -1136,6 +1140,10 @@
 .RS
 .B min, max, mean, standard deviation
 .RE
+Completion latency percentiles (20 fields):
+.RS
+.B Xth percentile=usec
+.RE
 Total latency:
 .RS
 .B min, max, mean, standard deviation