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-rw-r--r--src/Propellor/EnsureProperty.hs8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/Propellor/EnsureProperty.hs b/src/Propellor/EnsureProperty.hs
index 5a07107c..6c720e2b 100644
--- a/src/Propellor/EnsureProperty.hs
+++ b/src/Propellor/EnsureProperty.hs
@@ -50,10 +50,10 @@ ensureProperty
ensureProperty _ = maybe (return NoChange) catchPropellor . getSatisfy
-- The name of this was chosen to make type errors a bit more understandable.
-type family Cannot_ensureProperty_WithInfo (l :: [a]) :: Bool
-type instance Cannot_ensureProperty_WithInfo '[] = 'True
-type instance Cannot_ensureProperty_WithInfo (t ': ts) =
- Not (t `EqT` 'WithInfo) && Cannot_ensureProperty_WithInfo ts
+type family Cannot_ensureProperty_WithInfo (l :: [a]) :: Bool where
+ Cannot_ensureProperty_WithInfo '[] = 'True
+ Cannot_ensureProperty_WithInfo (t ': ts) =
+ Not (t `EqT` 'WithInfo) && Cannot_ensureProperty_WithInfo ts
-- | Constructs a property, like `property`, but provides its
-- `OuterMetaTypesWitness`.