diff --git a/contrib/build-wine/build.sh b/contrib/build-wine/build.sh
index 3ba3d985..7135525d 100755
--- a/contrib/build-wine/build.sh
+++ b/contrib/build-wine/build.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Lucky number
 export PYTHONHASHSEED=22