diff --git a/.travis/maven-build.sh b/.travis/maven-build.sh
old mode 100644
new mode 100755
index 8d193db..f098b8c
--- a/.travis/maven-build.sh
+++ b/.travis/maven-build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#! /bin/bash
 
 if [ "$TRAVIS_BRANCH" == "master" ]; then
     mvn -U package