diff --git a/HISTORY b/HISTORY
index 053e6a3..2bdb4c8 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,5 +1,10 @@
 reniced HISTORY
 
+----------------------------
+2010-06-06  revision 1.18
+
+ - add -o parameter to change ps(1) format to filter on
+
 ----------------------------
 2007-08-05  revision 1.17
 
diff --git a/Makefile b/Makefile
index 2a7dedc..3c8ba87 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 PKGNAME=reniced
-VERSION=$(shell grep \$$Id: reniced \
-	| head -n 1 | sed -e 's/^.*,v //' -e 's/ .*$$//')
+VERSION=$(shell grep 'reniced [0-9]' reniced \
+	| head -n 1 | sed -e 's/^\s*reniced\s*//' -e 's/\s*$$//')
 
 DISTDIR=$(PKGNAME)-$(VERSION)
 DISTFILE=$(DISTDIR).tar.gz
diff --git a/reniced b/reniced
index 7692fc9..444440b 100755
--- a/reniced
+++ b/reniced
@@ -194,7 +194,7 @@ Command format:
    -10r4  set nice value to -10 and io priority to realtime class 4
 
 Version:
-   $Id: reniced,v 1.17 2007-08-05 12:19:52 mitch Exp $
+   reniced 1.18
 EOF
     ;
 }