diff --git a/.gitignore b/.gitignore
index 93f8e3b..3a7f38e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -56,6 +56,11 @@ test-driver
 compile
 missing
 
+#
+# man page
+#
+doc/man/s3fs.1
+
 #
 # object directories
 #
diff --git a/configure.ac b/configure.ac
index cd63b59..038612c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -310,10 +310,19 @@ AC_COMPILE_IFELSE(
   ]
 )
 
+dnl ----------------------------------------------
+dnl build date
+dnl ----------------------------------------------
+AC_SUBST([MAN_PAGE_DATE], [$(date +"%B %Y")])
+
 dnl ----------------------------------------------
 dnl output files
 dnl ----------------------------------------------
-AC_CONFIG_FILES(Makefile src/Makefile test/Makefile doc/Makefile)
+AC_CONFIG_FILES(Makefile
+                src/Makefile
+                test/Makefile
+                doc/Makefile
+                doc/man/s3fs.1)
 
 dnl ----------------------------------------------
 dnl short commit hash
diff --git a/doc/man/s3fs.1 b/doc/man/s3fs.1.in
similarity index 99%
rename from doc/man/s3fs.1
rename to doc/man/s3fs.1.in
index 70b1f9b..74cbe7e 100644
--- a/doc/man/s3fs.1
+++ b/doc/man/s3fs.1.in
@@ -1,4 +1,4 @@
-.TH S3FS "1" "February 2011" "S3FS" "User Commands"
+.TH S3FS "1" "@MAN_PAGE_DATE@" "S3FS" "User Commands"
 .SH NAME
 S3FS \- FUSE-based file system backed by Amazon S3
 .SH SYNOPSIS