diff --git a/aliases/functions b/aliases/functions
index 9cc021d..49ddeb3 100644
--- a/aliases/functions
+++ b/aliases/functions
@@ -357,7 +357,8 @@ batstat() {
     done
 }
 
-if [[ $DISPLAY ]] && xinput | grep -q Wacom && xrandr | grep -q eDP1; then
+if [[ $DISPLAY ]] && exists xinput && exists xrandr && \
+xinput | grep -q Wacom && xrandr | grep -q eDP1; then
     xrandr() {
 	command xrandr $@
 	for dev in $(xinput | grep Wacom | grep -oP '(?<=id=)\d*'); do