diff --git a/data/makelogo.sh b/data/makelogo.sh
index 79e449164..28edaff08 100755
--- a/data/makelogo.sh
+++ b/data/makelogo.sh
@@ -1,2 +1,3 @@
+#!/bin/bash
 convert bootlogo_128.png -background black -flatten -depth 8 rgba:bootlogo_128.bin
 convert bootlogo_256.png -background black -flatten -depth 8 rgba:bootlogo_256.bin