diff --git a/.clabot b/.clabot
new file mode 100644
index 0000000..42e630a
--- /dev/null
+++ b/.clabot
@@ -0,0 +1,9 @@
+{
+	"contributors": [
+		"josharian",
+		"philz",
+		"banksean",
+		"pokey"
+	],
+	"message": "We require contributors to sign our Contributor License Agreement, and we don't have you on file. In order for us to review and merge your code, please contact @crawshaw to get yourself added."
+}