diff --git a/man/cwebp.1 b/man/cwebp.1
index cc57065e..3465628f 100644
--- a/man/cwebp.1
+++ b/man/cwebp.1
@@ -1,5 +1,5 @@
 .\"                                      Hey, EMACS: -*- nroff -*-
-.TH CWEBP 1 "March  1, 2011"
+.TH CWEBP 1 "March  28, 2011"
 .SH NAME
 cwebp \- compress an image file to a WebP file
 .SH SYNOPSIS
@@ -28,6 +28,9 @@ A short usage summary.
 .B \-H, \-longhelp
 A summary of all the possible options.
 .TP
+.B \-version
+Print the version number (as major.minor.revision) and exit.
+.TP
 .B \-q float
 Specify the compression factor between 0 and 100. Small factor
 produce smaller file with lower quality. Best quality is achieved
diff --git a/man/dwebp.1 b/man/dwebp.1
index f0538e7b..f13890cd 100644
--- a/man/dwebp.1
+++ b/man/dwebp.1
@@ -1,5 +1,5 @@
 .\"                                      Hey, EMACS: -*- nroff -*-
-.TH DWEBP 1 "March  1, 2011"
+.TH DWEBP 1 "March  28, 2011"
 .SH NAME
 dwebp \- compress a WebP file to an image file
 .SH SYNOPSIS
@@ -18,6 +18,9 @@ The basic options are:
 .B \-h
 Print usage summary.
 .TP
+.B \-version
+Print the version number (as major.minor.revision) and exit.
+.TP
 .B \-o string
 Specify the name of the output file (as PNG format by default).
 .TP