diff --git a/doc/man/s3fs.1 b/doc/man/s3fs.1
index ab4cb13..0650574 100644
--- a/doc/man/s3fs.1
+++ b/doc/man/s3fs.1
@@ -317,6 +317,9 @@ If credentials are provided by environment variables this switch
 forces presence check of AWSSESSIONTOKEN variable.
 Otherwise an error is returned.
 .TP
+\fB\-o\fR requester_pays (default is disable)
+This option instructs s3fs to enable requests involving Requester Pays buckets (It includes the 'x-amz-request-payer=requester' entry in the request header).
+.TP
 \fB\-o\fR dbglevel (default="crit")
 Set the debug message level. set value as crit (critical), err (error), warn (warning), info (information) to debug level. default debug level is critical.
 If s3fs run with "-d" option, the debug level is set information.
diff --git a/src/s3fs_util.cpp b/src/s3fs_util.cpp
index fa4eb8e..842706b 100644
--- a/src/s3fs_util.cpp
+++ b/src/s3fs_util.cpp
@@ -1415,6 +1415,12 @@ void show_help ()
     "        forces presence check of AWSSESSIONTOKEN variable.\n"
     "        Otherwise an error is returned."
     "\n"
+    "   requester_pays (default is disable)\n"
+    "        This option instructs s3fs to enable requests involving\n"
+    "        Requester Pays buckets.\n"
+    "        It includes the 'x-amz-request-payer=requester' entry in the\n"
+    "        request header."
+    "\n"
     "   dbglevel (default=\"crit\")\n"
     "        Set the debug message level. set value as crit (critical), err\n"
     "        (error), warn (warning), info (information) to debug level.\n"