diff --git a/stack.yaml b/stack.yaml
new file mode 100644
index 0000000..7e499d1
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1,7 @@
+resolver: lts-7.19
+
+packages:
+  - ./
+
+extra-deps:
+  - X11-1.8