diff --git a/usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh b/usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh
index 7fb2a60..669ffcc 100755
--- a/usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh
+++ b/usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh
@@ -1,3 +1,5 @@
+#!/bin/sh
+
 echo "Checking for mounted disks..."
 dmsetup ls --target crypt
 echo "WIPE RAM!"