diff --git a/src/app/FakeLib/AssemblyInfoFile.fs b/src/app/FakeLib/AssemblyInfoFile.fs
index 2e225719a5a..d9f71d68ef9 100644
--- a/src/app/FakeLib/AssemblyInfoFile.fs
+++ b/src/app/FakeLib/AssemblyInfoFile.fs
@@ -189,23 +189,23 @@ let CreateFSharpAssemblyInfoWithConfig outputFileName attributes (config : Assem
     let generateClass, useNamespace = config.GenerateClass, config.UseNamespace
 
     let sourceLines =
-        let required =
-            [ sprintf "namespace %s" useNamespace ]
-            @ (getDependencies attributes |> List.map (sprintf "open %s"))
-              @ [ "" ]
-                @ (attributes
-                   |> Seq.toList
-                   |> List.map (fun (attr : Attribute) -> sprintf "[<assembly: %sAttribute(%s)>]" attr.Name attr.Value))
-                  @ [ "do ()"; "" ]
-
-        let optional =
-            [ "module internal AssemblyVersionInformation ="
-              sprintf "    let [<Literal>] Version = %s" (getAssemblyVersionInfo attributes)
-              sprintf "    let [<Literal>] InformationalVersion = %s" (getAssemblyInformationalVersion attributes)
-            ]
-
-        if generateClass then required @ optional
-        else required
+        [
+            yield "// Auto-Generated by FAKE; do not edit"
+            yield sprintf "namespace %s" useNamespace
+            yield! getDependencies attributes |> Seq.map (sprintf "open %s")
+            yield ""
+            yield!
+                attributes
+                |> Seq.map (fun (attr : Attribute) -> sprintf "[<assembly: %sAttribute(%s)>]" attr.Name attr.Value)
+                  
+            yield "do ()"; yield ""
+
+            if generateClass then
+                yield "module internal AssemblyVersionInformation ="
+                yield sprintf "    let [<Literal>] Version = %s" (getAssemblyVersionInfo attributes)
+                yield sprintf "    let [<Literal>] InformationalVersion = %s" (getAssemblyInformationalVersion attributes)
+        ]
+
     sourceLines |> writeToFile outputFileName
     traceEndTask "AssemblyInfo" outputFileName
 
diff --git a/src/test/Test.FAKECore/AssemblyInfoSpecs.cs b/src/test/Test.FAKECore/AssemblyInfoSpecs.cs
index c65ec2ba8c6..94f71a3e728 100644
--- a/src/test/Test.FAKECore/AssemblyInfoSpecs.cs
+++ b/src/test/Test.FAKECore/AssemblyInfoSpecs.cs
@@ -24,7 +24,7 @@ public class when_using_fsharp_task_with_default_config
                 AssemblyInfoFile.Attribute.Version("1.0.0.0")
             };
             AssemblyInfoFile.CreateFSharpAssemblyInfo(infoFile, attributes);
-            const string expected = "namespace System\r\nopen System.Reflection\r\n\r\n[<assembly: AssemblyProductAttribute(\"TestLib\")>]\r\n[<assembly: AssemblyVersionAttribute(\"1.0.0.0\")>]\r\ndo ()\r\n\r\nmodule internal AssemblyVersionInformation =\r\n    let [<Literal>] Version = \"1.0.0.0\"\r\n    let [<Literal>] InformationalVersion = \"1.0.0.0\"\r\n";
+            const string expected = "// Auto-Generated by FAKE; do not edit\r\nnamespace System\r\nopen System.Reflection\r\n\r\n[<assembly: AssemblyProductAttribute(\"TestLib\")>]\r\n[<assembly: AssemblyVersionAttribute(\"1.0.0.0\")>]\r\ndo ()\r\n\r\nmodule internal AssemblyVersionInformation =\r\n    let [<Literal>] Version = \"1.0.0.0\"\r\n    let [<Literal>] InformationalVersion = \"1.0.0.0\"\r\n";
 
             File.ReadAllText(infoFile)
                 .ShouldEqual(expected.Replace("\r\n", Environment.NewLine));
@@ -87,7 +87,7 @@ public class when_using_fsharp_task_with_custom_config
                 AssemblyInfoFile.Attribute.Version("1.0.0.0")
             };
             AssemblyInfoFile.CreateFSharpAssemblyInfoWithConfig(infoFile, attributes, customConfig);
-            const string expected = "namespace Custom\r\nopen System.Reflection\r\n\r\n[<assembly: AssemblyProductAttribute(\"TestLib\")>]\r\n[<assembly: AssemblyVersionAttribute(\"1.0.0.0\")>]\r\ndo ()\r\n\r\n";
+            const string expected = "// Auto-Generated by FAKE; do not edit\r\nnamespace Custom\r\nopen System.Reflection\r\n\r\n[<assembly: AssemblyProductAttribute(\"TestLib\")>]\r\n[<assembly: AssemblyVersionAttribute(\"1.0.0.0\")>]\r\ndo ()\r\n\r\n";
             File.ReadAllText(infoFile)
                 .ShouldEqual(expected.Replace("\r\n", Environment.NewLine));
         };