diff --git a/scripts/setup.sh b/scripts/setup.sh
index d3c136a01b..a1fc5a47c8 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -6,13 +6,13 @@ rootdir=$(readlink -f $(dirname $0))/..
 
 function linux_iter_pci_class_code {
 	# Argument is the class code
-	lspci -mm -n -D | tr -d '"' | awk -v cc="$1" -F " " '{if (cc ~ $2) print $1}'
+	lspci -mm -n -D | awk -v cc="\"$1\"" -F " " '{if (cc ~ $2) print $1}' | tr -d '"'
 }
 
 function linux_iter_pci_dev_id {
 	# Argument 1 is the vendor id
 	# Argument 2 is the device id
-	lspci -mm -n -D | tr -d '"' | awk -v ven="$1" -v dev="$2" -F " " '{if (ven ~ $3 && dev ~ $4) print $1}'
+	lspci -mm -n -D | awk -v ven="\"$1\"" -v dev="\"$2\"" -F " " '{if (ven ~ $3 && dev ~ $4) print $1}' | tr -d '"'
 }
 
 function linux_bind_driver() {