diff --git a/betterlockscreen b/betterlockscreen
index 9470889..bc44800 100755
--- a/betterlockscreen
+++ b/betterlockscreen
@@ -353,17 +353,16 @@ case "$1" in
 		echo
 		echo "Caching images for faster screen locking"
 		# resized
-		convert "$resized" -draw "fill '#00000096' $rectangles" "$l_resized"
+        convert "$resized" -draw "fill rgba(0, 0, 0, 0.4) $rectangles" "$l_resized"
 
 		# dim
-		convert "$dim" -draw "fill '#00000096' $rectangles" "$l_dim"
+		convert "$dim" -draw "fill rgba(0, 0, 0, 0.4) $rectangles" "$l_dim"
 
 		# blur
-		convert "$blur" -draw "fill '#00000096' $rectangles" "$l_blur"
+		convert "$blur" -draw "fill rgba(0, 0, 0, 0.4) $rectangles" "$l_blur"
 
 		# blur
-		convert "$dimblur" -draw "fill '#00000096' $rectangles" "$l_dimblur"
-
+		convert "$dimblur" -draw "fill rgba(0, 0, 0, 0.4) $rectangles" "$l_dimblur"
 		echo
 		echo "All required changes have been applied"
 		;;