diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb51567..3deb940 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+- Fix indentation issue when table has constraints - https://github.com/efcore/EFCore.FSharp/pull/75
+
 ## [5.0.3-alpha5] - 2021-03-31
 
 ### Fixed
diff --git a/GETTING_STARTED.md b/GETTING_STARTED.md
index 5926c1a..28c807f 100644
--- a/GETTING_STARTED.md
+++ b/GETTING_STARTED.md
@@ -120,8 +120,7 @@ For this example we will use record types, but "normal" classes will also work i
     type BloggingContext() =  
         inherit DbContext()
         
-        [<DefaultValue>] val mutable blogs : DbSet<Blog>
-        member __.Blogs with get() = __.blogs and set v = __.blogs <- v
+        member val Blogs : DbSet<Blog> = null with get, set
 
         override __.OnConfiguring(options: DbContextOptionsBuilder) : unit =
             options.UseSqlite("Data Source=blogging.db") |> ignore
diff --git a/docsSrc/How_Tos/Use_DbContextHelpers.md b/docsSrc/How_Tos/Use_DbContextHelpers.md
index 8b200b2..3e93a46 100644
--- a/docsSrc/How_Tos/Use_DbContextHelpers.md
+++ b/docsSrc/How_Tos/Use_DbContextHelpers.md
@@ -27,9 +27,7 @@ type Blog = {
 type MyContext () =
     inherit DbContext()
 
-    [<DefaultValue>]
-    val mutable private _blogs : DbSet<Blog>
-    member this.Blogs with get() = this._blogs and set v = this._blogs <- v
+    member val Blogs : DbSet<Blog> = null with get, set
 ```
 
 We can use the helper methods like so
diff --git a/src/EFCore.FSharp/Migrations/Design/FSharpMigrationOperationGenerator.fs b/src/EFCore.FSharp/Migrations/Design/FSharpMigrationOperationGenerator.fs
index 0c04e8e..a02f1fe 100644
--- a/src/EFCore.FSharp/Migrations/Design/FSharpMigrationOperationGenerator.fs
+++ b/src/EFCore.FSharp/Migrations/Design/FSharpMigrationOperationGenerator.fs
@@ -48,24 +48,19 @@ type FSharpMigrationOperationGenerator (code : ICSharpHelper) =
             sb
 
     let annotations (annotations: Annotation seq) (sb:IndentedStringBuilder) =
-        annotations
-            |> Seq.iter(fun a ->
-                sb
-                |> appendEmptyLine
-                |> append (sprintf ".Annotation(%s, %s)" (code.Literal a.Name) (code.UnknownLiteral a.Value))
-                |> ignore
-            )
-        sb
+
+        let lines =
+            annotations
+            |> Seq.map (fun a -> sprintf ".Annotation(%s, %s)" (code.Literal a.Name) (code.UnknownLiteral a.Value))
+
+        sb |> appendLines lines true
 
     let oldAnnotations (annotations: Annotation seq) (sb:IndentedStringBuilder) =
-        annotations
-            |> Seq.iter(fun a ->
-                sb
-                |> appendEmptyLine
-                |> append (sprintf ".OldAnnotation(%s, %s)" (code.Literal a.Name) (code.UnknownLiteral a.Value))
-                |> ignore
-            )
-        sb
+        let lines =
+            annotations
+            |> Seq.map (fun a -> sprintf ".OldAnnotation(%s, %s)" (code.Literal a.Name) (code.UnknownLiteral a.Value))
+
+        sb |> appendLines lines true
 
     let generateMigrationOperation (op:MigrationOperation) (sb:IndentedStringBuilder) :IndentedStringBuilder =
         invalidOp ((op.GetType()) |> DesignStrings.UnknownOperation)
@@ -375,7 +370,7 @@ type FSharpMigrationOperationGenerator (code : ICSharpHelper) =
         let writeConstraints sb =
 
             let hasConstraints =
-                notNull op.PrimaryKey || (op.UniqueConstraints |> Seq.isEmpty |> not) || (op.ForeignKeys |> Seq.isEmpty |> not)
+                notNull op.PrimaryKey && (op.UniqueConstraints |> Seq.isEmpty |> not) && (op.ForeignKeys |> Seq.isEmpty |> not)
 
             if hasConstraints then
 
@@ -386,16 +381,14 @@ type FSharpMigrationOperationGenerator (code : ICSharpHelper) =
                 |> ignore
 
                 if notNull op.PrimaryKey then
+
+                    let pkName = op.PrimaryKey.Name |> code.Literal
+                    let pkColumns = op.PrimaryKey.Columns |> Seq.map(fun c -> map.[c]) |> Seq.toList |> code.Lambda
+
                     sb
-                        |> append "table.PrimaryKey("
-                        |> append (op.PrimaryKey.Name |> code.Literal)
-                        |> append ", "
-                        |> append (op.PrimaryKey.Columns |> Seq.map(fun c -> map.[c]) |> Seq.toList |> code.Lambda)
-                        |> append ")"
-                        |> indent
+                        |> append (sprintf "table.PrimaryKey(%s, %s)" pkName pkColumns)
                         |> annotations (op.PrimaryKey.GetAnnotations())
                         |> appendLine " |> ignore"
-                        |> unindent
                         |> ignore
 
                 op.UniqueConstraints |> Seq.iter writeUniqueConstraint
@@ -404,6 +397,7 @@ type FSharpMigrationOperationGenerator (code : ICSharpHelper) =
                 sb
                     |> unindent
                     |> appendLine ") "
+                    |> unindent
             else
                 sb
 
diff --git a/src/EFCore.FSharp/Scaffolding/FSharpDbContextGenerator.fs b/src/EFCore.FSharp/Scaffolding/FSharpDbContextGenerator.fs
index f71c4bf..790aaaa 100644
--- a/src/EFCore.FSharp/Scaffolding/FSharpDbContextGenerator.fs
+++ b/src/EFCore.FSharp/Scaffolding/FSharpDbContextGenerator.fs
@@ -60,20 +60,12 @@ type FSharpDbContextGenerator
     let generateDbSet (sb:IndentedStringBuilder) (entityType : IEntityType) =
 
         let dbSetName = entityDbSetName entityType
-        let mutableName = "_" + dbSetName
 
         sb
-            |> appendLine "[<DefaultValue>]"
-            |> appendLine (sprintf "val mutable private %s : DbSet<%s>" mutableName entityType.Name)
-            |> appendLine (sprintf "member this.%s" dbSetName)
-            |> indent
-            |> appendLine (sprintf "with get() = this.%s" mutableName)
-            |> appendLine (sprintf "and set v = this.%s <- v" mutableName)
-            |> unindent
+            |> appendLine (sprintf "member val %s: DbSet<%s> = null with get, set" dbSetName entityType.Name)
+            |> appendEmptyLine
             |> ignore
 
-        sb.AppendLine() |> ignore
-
     let generateDbSets (model:IModel) (sb:IndentedStringBuilder) =
 
         model.GetEntityTypes()
diff --git a/tests/EFCore.FSharp.Tests/Migrations/Design/FSharpMigrationsGeneratorTest.fs b/tests/EFCore.FSharp.Tests/Migrations/Design/FSharpMigrationsGeneratorTest.fs
index 799d85e..09bad21 100644
--- a/tests/EFCore.FSharp.Tests/Migrations/Design/FSharpMigrationsGeneratorTest.fs
+++ b/tests/EFCore.FSharp.Tests/Migrations/Design/FSharpMigrationsGeneratorTest.fs
@@ -639,8 +639,7 @@ type MyMigration() =
     inherit Migration()
 
     override this.Up(migrationBuilder:MigrationBuilder) =
-        migrationBuilder.Sql("-- TEST")
-            .Annotation("Some:EnumValue", RegexOptions.Multiline) |> ignore
+        migrationBuilder.Sql("-- TEST").Annotation("Some:EnumValue", RegexOptions.Multiline) |> ignore
 
         migrationBuilder.AlterColumn<Database>(
             name = "C1"