diff --git a/install.sh b/install.sh
index 58a73f9..f930bf3 100755
--- a/install.sh
+++ b/install.sh
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 
 # Although these should be inherited from the Makefile,
 # we set some defaults ourself, too, in case we are called