diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..04f0838cea49448abfac141d13af5bc772a36d1a
--- /dev/null
+++ b/go.mod
@@ -0,0 +1 @@
+module github.com/mccutchen/go-httpbin