diff --git a/lib/util.sh b/lib/util.sh
index a66eb81..daabba9 100644
--- a/lib/util.sh
+++ b/lib/util.sh
@@ -61,13 +61,13 @@ function get_cpu_vendor() {
   if [[ -z "${CPU_VENDOR}" ]] || [[ "${CPU_VENDOR}" == 'autodetect' ]]; then
 
     # If run virtual environment (e.g. VirtualBox) then no CPU microcode is required
-    if cat /proc/cpuinfo | grep '^flags.*hypervisor' >/dev/null; then
+    if grep '^flags.*hypervisor' /proc/cpuinfo >/dev/null; then
       echo 'Detected virtual environment.'
       CPU_VENDOR='none'
 
     else
       local vendor_id
-      vendor_id=$(cat /proc/cpuinfo | grep vendor_id | head -1 | sed 's|vendor_id\s*:\s*||')
+      vendor_id=$(grep vendor_id /proc/cpuinfo | head -1 | sed 's|vendor_id\s*:\s*||')
 
       if [ "${vendor_id}" = 'AuthenticAMD' ]; then
         CPU_VENDOR='amd'