diff --git a/effectful-core/src/Effectful/Internal/Monad.hs b/effectful-core/src/Effectful/Internal/Monad.hs
index fb8c2bb..31a02ca 100644
--- a/effectful-core/src/Effectful/Internal/Monad.hs
+++ b/effectful-core/src/Effectful/Internal/Monad.hs
@@ -235,16 +235,16 @@ instance C.MonadCatch (Eff es) where
       unEff (handler e) es
 
 instance C.MonadMask (Eff es) where
-  mask k = unsafeEff $ \es -> E.mask $ \restore ->
-    unEff (k $ \m -> unsafeEff $ restore . unEff m) es
+  mask k = unsafeEff $ \es -> E.mask $ \unmask ->
+    unEff (k $ \m -> unsafeEff $ unmask . unEff m) es
 
-  uninterruptibleMask k = unsafeEff $ \es -> E.uninterruptibleMask $ \restore ->
-    unEff (k $ \m -> unsafeEff $ restore . unEff m) es
+  uninterruptibleMask k = unsafeEff $ \es -> E.uninterruptibleMask $ \unmask ->
+    unEff (k $ \m -> unsafeEff $ unmask . unEff m) es
 
-  generalBracket acquire release use = unsafeEff $ \es -> E.mask $ \restore -> do
+  generalBracket acquire release use = unsafeEff $ \es -> E.mask $ \unmask -> do
     size <- sizeEnv es
     resource <- unEff acquire es
-    b <- restore (unEff (use resource) es) `E.catch` \e -> do
+    b <- unmask (unEff (use resource) es) `E.catch` \e -> do
       checkSizeEnv size es
       _ <- unEff (release resource $ C.ExitCaseException e) es
       E.throwIO e
diff --git a/effectful-core/src/Effectful/Writer/Static/Local.hs b/effectful-core/src/Effectful/Writer/Static/Local.hs
index 7a11e32..f43345b 100644
--- a/effectful-core/src/Effectful/Writer/Static/Local.hs
+++ b/effectful-core/src/Effectful/Writer/Static/Local.hs
@@ -75,9 +75,9 @@ tell w = stateStaticRep $ \(Writer w0) -> ((), Writer (w0 <> w))
 -- :}
 -- "Hi there!"
 listen :: (Writer w :> es, Monoid w) => Eff es a -> Eff es (a, w)
-listen m = unsafeEff $ \es -> mask $ \restore -> do
+listen m = unsafeEff $ \es -> mask $ \unmask -> do
   w0 <- stateEnv es $ \(Writer w) -> (w, Writer mempty)
-  a <- restore (unEff m es) `onException` merge es w0
+  a <- unmask (unEff m es) `onException` merge es w0
   (a, ) <$> merge es w0
   where
     merge es w0 =
diff --git a/effectful-core/src/Effectful/Writer/Static/Shared.hs b/effectful-core/src/Effectful/Writer/Static/Shared.hs
index 737fc93..4916fec 100644
--- a/effectful-core/src/Effectful/Writer/Static/Shared.hs
+++ b/effectful-core/src/Effectful/Writer/Static/Shared.hs
@@ -83,11 +83,11 @@ listen m = unsafeEff $ \es -> do
   -- The mask is uninterruptible because modifyMVar_ v0 in the merge function
   -- might block and if an async exception is received while waiting, w1 will be
   -- lost.
-  uninterruptibleMask $ \restore -> do
+  uninterruptibleMask $ \unmask -> do
     v1 <- newMVar mempty
     -- Replace thread local MVar with a fresh one for isolated listening.
     v0 <- stateEnv es $ \(Writer v) -> (v, Writer v1)
-    a <- restore (unEff m es) `onException` merge es v0 v1
+    a <- unmask (unEff m es) `onException` merge es v0 v1
     (a, ) <$> merge es v0 v1
   where
     -- Merge results accumulated in the local MVar with the mainline. If an
diff --git a/effectful/src/Effectful/Resource.hs b/effectful/src/Effectful/Resource.hs
index b95fec6..a2a53db 100644
--- a/effectful/src/Effectful/Resource.hs
+++ b/effectful/src/Effectful/Resource.hs
@@ -38,9 +38,9 @@ runResource :: IOE :> es => Eff (Resource : es) a -> Eff es a
 runResource m = unsafeEff $ \es0 -> do
   size0 <- sizeEnv es0
   istate <- R.createInternalState
-  mask $ \restore -> do
+  mask $ \unmask -> do
     es <- unsafeConsEnv (Resource istate) dummyRelinker es0
-    a <- restore (unEff m es) `catch` \e -> do
+    a <- unmask (unEff m es) `catch` \e -> do
       unsafeTailEnv size0 es
       RI.stateCleanupChecked (Just e) istate
       throwIO e