diff --git a/README b/README
index 51da2f6..819cd43 100644
--- a/README
+++ b/README
@@ -22,9 +22,9 @@ netlink interface, amongst other new features.
 			   --------------------
 
 	After install, simply add these options to your kernel
-command-line, normally in /boot/grub/menu.lst:
+command-line, normally in normally in /etc/default/grub:
 
-	initcall_debug printk.time=y quiet init=/sbin/bootchartd ...
+	GRUB_CMDLINE_LINUX_DEFAULT="quiet init=/sbin/bootchartd"
 
 	Then - after bootup, run 'pybootchartgui -i' to get an interactive
 chart rendering tool. If you want to chart the initrd, add
diff --git a/bootchart2.1 b/bootchart2.1
index 14a9910..fe9ce87 100644
--- a/bootchart2.1
+++ b/bootchart2.1
@@ -11,11 +11,11 @@ a shell script, a collector and a visualisation tool.
 Please also see the manual pages referred to in the \fBSEE ALSO\fR
 section.
 .SH CONFIGURATION
-After install simply add these options to your kernel command line, normally in \fI/boot/grub/menu.lst:
+After install simply add these options to your kernel command line, normally in \fI/etc/default/grub:
 .in +4n
 .nf
 
-.B "initcall_debug printk.time=y quiet init=/sbin/bootchartd ..."
+.B GRUB_CMDLINE_LINUX_DEFAULT="quiet init=/sbin/bootchartd"
 
 .fi
 .in