diff --git a/shell/.xsessionrc b/shell/.xsessionrc
index 480ae20..ba5377c 100644
--- a/shell/.xsessionrc
+++ b/shell/.xsessionrc
@@ -18,12 +18,12 @@ do
 done
 
 # FullHD
-if [ $MAX_RES -le 1920 ]; then
+if [ "$MAX_RES" -le 1920 ]; then
 	xrdb -merge ~/.Xresources.d/lowdpi
 # 2k
-elif [ $MAX_RES -gt 1920 || $MAX_RES -lt 2500 ]; then
+elif [ "$MAX_RES" -gt 1920 ] && [ "$MAX_RES" -le 2560 ]; then
 	xrdb -merge ~/.Xresources.d/middpi
-elif [ $MAX_RES -gt 2500 ]; then
+elif [ "$MAX_RES" -gt 2560 ]; then
 	xrdb -merge ~/.Xresources.d/hidpi
 fi