diff --git a/build b/build
new file mode 100755
index 0000000..3a9d0df
--- /dev/null
+++ b/build
@@ -0,0 +1,4 @@
+#!/bin/bash -x
+
+mkdir -p files/usr/share/bash-completion/completions/
+wit-test --bash > files/usr/share/bash-completion/completions/wit-test