--- /etc/acpi/resume.d/90-hdparm.sh.o	2009-01-15 13:17:01.000000000 +0100
+++ /etc/acpi/resume.d/90-hdparm.sh	2009-01-15 13:16:37.000000000 +0100
@@ -29,7 +29,7 @@ if [ $DO_HDPARM = y ] ; then
       # Check for APM support; discard errors since not all drives
       # support HDIO_GET_IDENTITY (-i).    
       if hdparm -i $dev 2> /dev/null | grep -q 'AdvancedPM=yes' ; then
-	if [ $STATE = "BATTERY" ] ; then
+	if [ "$STATE" = "BATTERY" ] ; then
 	  hdparm -B 128 $dev
 	else
 	  hdparm -B 254 $dev