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-rw-r--r--src/Propellor/Property.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Propellor/Property.hs b/src/Propellor/Property.hs
index d80d9c1f..e967cac9 100644
--- a/src/Propellor/Property.hs
+++ b/src/Propellor/Property.hs
@@ -201,7 +201,7 @@ withOS :: Desc -> (Maybe System -> Propellor Result) -> Property NoInfo
withOS desc a = property desc $ a =<< getOS
-- | Undoes the effect of a RevertableProperty.
-revert :: RevertableProperty -> RevertableProperty
+revert :: RevertableProperty i -> RevertableProperty i
revert (RevertableProperty p1 p2) = RevertableProperty p2 p1
makeChange :: IO () -> Propellor Result