diff --git a/src/SES/Myers.hs b/src/SES/Myers.hs
index 349ce6d72..1cd6cdee6 100644
--- a/src/SES/Myers.hs
+++ b/src/SES/Myers.hs
@@ -1 +1,5 @@
 module SES.Myers where
+
+import Prologue
+
+data Snake = Snake { x :: Int, y :: Int, u :: Int, v :: Int }