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-rw-r--r--src/Propellor/PropAccum.hs6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/Propellor/PropAccum.hs b/src/Propellor/PropAccum.hs
index 5d1d3afb..c60ced73 100644
--- a/src/Propellor/PropAccum.hs
+++ b/src/Propellor/PropAccum.hs
@@ -41,9 +41,9 @@ infixl 1 &
infixl 1 &^
infixl 1 !
-type family GetMetaTypes x
-type instance GetMetaTypes (Property (MetaTypes t)) = MetaTypes t
-type instance GetMetaTypes (RevertableProperty (MetaTypes t) undo) = MetaTypes t
+type family GetMetaTypes x where
+ GetMetaTypes (Property (MetaTypes t)) = MetaTypes t
+ GetMetaTypes (RevertableProperty (MetaTypes t) undo) = MetaTypes t
-- | Adds a property to a Props.
--