diff --git a/pb.1 b/pb.1
index f837387..b4ccee1 100644
--- a/pb.1
+++ b/pb.1
@@ -5,7 +5,7 @@ pb \- a helper utility for using 0x0 pastebin services
 
 .SH SYNOPSIS
 .B pb
-[-fucvh] [-s server_endpoint]
+[-fucvh] [-s server_endpoint] [-e bin_extension]
 .P
 
 .SH DESRIPTION