diff --git a/debian/changelog b/debian/changelog
index c45d4ef..dce4c6f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+a2pi (0.1.1-4) unstable; urgency=low
+
+  * Fix update to /boot/cmdline.txt (again) - thanks Ivan Drucker!
+
+ -- David Schmenk <dschmenk@gmail.com>  Sun, 6 Oct 2013 14:31:35 -0700
+
 a2pi (0.1.1-3) unstable; urgency=low
 
   * Fix update to /boot/cmdline.txt - thanks Ivan Drucker!
diff --git a/debian/postinst b/debian/postinst
index 4ce7512..cf37cc5 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -24,7 +24,7 @@ case "$1" in
         # Update /boot partition files.
         #
         if [ "$(grep ttyAMA0 /boot/cmdline.txt)" != "" ] ; then
-	    mv /boot/cmdline.txt /boot/cmdline.bak
+	    cp /boot/cmdline.txt /boot/cmdline.bak
 	    sed -i 's/console=ttyAMA0,[0-9]* kgdboc=ttyAMA0,[0-9]* //g' /boot/cmdline.txt
         fi
         #