diff --git a/.travis/linux.debian-sid.script.sh b/.travis/linux.debian-sid.script.sh
index 1c62ce6a4..9b8db416c 100755
--- a/.travis/linux.debian-sid.script.sh
+++ b/.travis/linux.debian-sid.script.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 set -e
 
 : "${TARGET_ARCH:=amd64}"
@@ -60,7 +60,7 @@ sync_version() {
 	esac
 
 	sed "1 s/@VERSION@/$VERSION/" -i debian/changelog
-	echo Set Debian version to $VERSION
+	echo "Set Debian version to $VERSION"
 }
 
 sync_version