diff --git a/effects/Gotham.sh b/effects/Gotham.sh
index 184c783..92cb731 100755
--- a/effects/Gotham.sh
+++ b/effects/Gotham.sh
@@ -1,2 +1,3 @@
 #!/bin/bash
-convert /home/pi/cam.jpg -modulate 120,10,100 -fill '#222b6d' -colorize 20 -gamma 0.5 /home/pi/DCIM/$(x="$(ls -v /home/pi/DCIM/| tail -n 1 | sed 's/.jpg//g')"; echo $x+1 | bc).jpg
+convert /home/pi/cam.jpg -modulate 120,10,100 -fill '#222b6d' -colorize 20 -gamma 0.5 /home/pi/DCIM/$(x="$(ls -v /home/pi/DCIM/| tail -n 1 | sed 's/.jpg//g')"; echo $x | awk '{printf $1 + 1}').jpg
+