1 files changed, 1 insertions, 1 deletions
diff --git a/src/AST.hs b/src/AST.hs
index 8d795bf..e39c74f 100644
--- a/src/AST.hs
+++ b/src/AST.hs
@@ -28,7 +28,7 @@ data Nat = Z | S Nat
 data SNat n where
   SZ :: SNat Z
   SS :: SNat n -> SNat (S n)
-deriving instance (Show (SNat n))
+deriving instance Show (SNat n)
 
 data Vec n t where
   VNil :: Vec Z t