diff --git a/util/functions.sh b/util/functions.sh
index c593833..526465d 100755
--- a/util/functions.sh
+++ b/util/functions.sh
@@ -6,11 +6,20 @@ GREEN='\033[0;32m'
 YELLOW='\033[0;33m'
 NC='\033[0m'
 
+FLASHROM=$(whereis -b flashrom | cut -d ' ' -f 2)
+DMIDECODE=$(whereis -b dmidecode | cut -d ' ' -f 2)
+
 force_x230_and_root()
 {
-	command -v dmidecode >/dev/null 2>&1 || { echo -e >&2 "${RED}Please install dmidecode and run as root.${NC}"; exit 1; }
+	if [ "$EUID" -ne 0 ] ; then
+		echo -e "${RED}Please run this as root.${NC} And make sure you have the following programs:"
+		echo "dmidecode"
+		echo "flashrom"
+
+		exit 1
+	fi
 
-	local LAPTOP=$(dmidecode | grep -i x230 | sort -u)
+	local LAPTOP=$(${DMIDECODE} | grep -i x230 | sort -u)
 	if [ -z "$LAPTOP" ] ; then
 		echo "This is no Thinkpad X230. This script is useless then."
 		exit 0
diff --git a/x230/x230_heads.sh b/x230/x230_heads.sh
index 9cc6213..29ef6af 100755
--- a/x230/x230_heads.sh
+++ b/x230/x230_heads.sh
@@ -115,7 +115,7 @@ check_battery
 while true; do
 	read -r -p "Flash the BIOS now? y/N: " yn
 	case $yn in
-		[Yy]* ) cd ${OUTPUT_PATH} && flashrom -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;
+		[Yy]* ) cd ${OUTPUT_PATH} && ${FLASHROM} -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;
 		[Nn]* ) exit;;
 		* ) exit;;
 	esac
diff --git a/x230/x230_skulls.sh b/x230/x230_skulls.sh
index 5035a3e..a0a0a4f 100755
--- a/x230/x230_skulls.sh
+++ b/x230/x230_skulls.sh
@@ -118,9 +118,9 @@ fi
 
 force_x230_and_root
 
-BIOS_VENDOR=$(dmidecode -t bios | grep Vendor | cut -d':' -f2)
+BIOS_VENDOR=$(${DMIDECODE} -t bios | grep Vendor | cut -d':' -f2)
 if [[ $BIOS_VENDOR != *"coreboot"* ]] ; then
-	BIOS_VERSION=$(dmidecode -s bios-version | grep -o '[1-2].[0-7][0-9]')
+	BIOS_VERSION=$(${DMIDECODE} -s bios-version | grep -o '[1-2].[0-7][0-9]')
 	bios_major=$(echo "$BIOS_VERSION" | cut -d. -f1)
 	bios_minor=$(echo "$BIOS_VERSION" | cut -d. -f2)
 
@@ -203,7 +203,7 @@ check_battery
 while true; do
 	read -r -p "Flash the BIOS now? y/N: " yn
 	case $yn in
-		[Yy]* ) cd ${OUTPUT_PATH} && flashrom -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;
+		[Yy]* ) cd ${OUTPUT_PATH} && ${FLASHROM} -p internal --layout ${LAYOUT_FILENAME} --image bios -w "${OUTPUT_IMAGE_NAME}"; break;;
 		[Nn]* ) exit;;
 		* ) exit;;
 	esac