diff --git a/man/datamash.x b/man/datamash.x
index 552d9f4..8d4078c 100644
--- a/man/datamash.x
+++ b/man/datamash.x
@@ -337,7 +337,7 @@ $ cat example.txt | sort \-k1,1 | \fBdatamash\fR \-g 1 sum 2
 
 .SS "Header lines"
 .PP
-Use \fB\-h\fR \fB(\-\-headers)\fR if the input file has a header line:
+Use \fB\-H\fR \fB(\-\-headers)\fR if the input file has a header line:
 .PP
 .nf
 .RS