diff --git a/src/Fantomas.Tests/LetBindingTests.fs b/src/Fantomas.Tests/LetBindingTests.fs
index 5ce31a030d..22f3947efb 100644
--- a/src/Fantomas.Tests/LetBindingTests.fs
+++ b/src/Fantomas.Tests/LetBindingTests.fs
@@ -1877,3 +1877,98 @@ let a = x in foo x
         """
 let a = x in foo x
 """
+
+[<Test>]
+let ``let binding as part of sequential inside parenthesis, 1805`` () =
+    formatSourceString
+        false
+        """
+module Foo =
+    let foo =
+        lazy (
+            if not <| bar then
+                raise <| Exception "Very very very very very very very very very very very very very very long"
+            let ret = false
+            if ret then
+                "foo"
+            else
+                "bar"
+            |> log.Info
+            ret
+        )
+"""
+        config
+    |> prepend newline
+    |> should
+        equal
+        """
+module Foo =
+    let foo =
+        lazy
+            (if not <| bar then
+                 raise
+                 <| Exception "Very very very very very very very very very very very very very very long"
+
+             let ret = false
+
+             if ret then "foo" else "bar"
+             |> log.Info
+
+             ret)
+"""
+
+[<Test>]
+let ``sequential inside parenthesis, 1777`` () =
+    formatSourceString
+        false
+        """
+if kind = shiftFlag then (
+                    if errorSuppressionCountDown > 0 then
+                        errorSuppressionCountDown <- errorSuppressionCountDown - 1
+#if DEBUG
+                        if Flags.debug then Console.WriteLine("shifting, reduced errorRecoveryLevel to {0}\n", errorSuppressionCountDown)
+#endif
+                    let nextState = actionValue action
+                    if not haveLookahead then failwith "shift on end of input!"
+                    let data = tables.dataOfToken lookaheadToken
+                    valueStack.Push(ValueInfo(data, lookaheadStartPos, lookaheadEndPos))
+                    stateStack.Push(nextState)
+#if DEBUG
+                    if Flags.debug then Console.WriteLine("shift/consume input {0}, shift to state {1}", report haveLookahead lookaheadToken, nextState)
+#endif
+                    haveLookahead <- false
+
+                )
+"""
+        config
+    |> prepend newline
+    |> should
+        equal
+        """
+if kind = shiftFlag then
+    (if errorSuppressionCountDown > 0 then
+         errorSuppressionCountDown <- errorSuppressionCountDown - 1
+#if DEBUG
+         if Flags.debug then
+             Console.WriteLine("shifting, reduced errorRecoveryLevel to {0}\n", errorSuppressionCountDown)
+#endif
+     let nextState = actionValue action
+
+     if not haveLookahead then
+         failwith "shift on end of input!"
+
+     let data = tables.dataOfToken lookaheadToken
+     valueStack.Push(ValueInfo(data, lookaheadStartPos, lookaheadEndPos))
+     stateStack.Push(nextState)
+#if DEBUG
+     if Flags.debug then
+         Console.WriteLine(
+             "shift/consume input {0}, shift to state {1}",
+             report haveLookahead lookaheadToken,
+             nextState
+         )
+#endif
+     haveLookahead <- false
+
+    )
+"""
diff --git a/src/Fantomas/CodePrinter.fs b/src/Fantomas/CodePrinter.fs
index c6170952a1..27d56ff9b4 100644
--- a/src/Fantomas/CodePrinter.fs
+++ b/src/Fantomas/CodePrinter.fs
@@ -1610,7 +1610,8 @@ and genExpr astContext synExpr ctx =
                     ctx
         | Paren (lpr, e, rpr, pr) ->
             match e with
-            | LetOrUses _ ->
+            | LetOrUses _
+            | Sequential (_, LetOrUses _, _) ->
                 sepOpenTFor lpr
                 +> atCurrentColumn (genExpr astContext e)
                 +> sepCloseTFor rpr pr