diff --git a/metaschema/types.tmpl b/metaschema/types.tmpl
index b4a65e06..5ffd0b84 100644
--- a/metaschema/types.tmpl
+++ b/metaschema/types.tmpl
@@ -1,3 +1,4 @@
+// Code generated by go generate; DO NOT EDIT.
 {{$packageName := toLower .Use -}}
 package {{ $packageName }}
 
diff --git a/templates/implementation.go b/templates/implementation.go
index f2b47480..3c90ba57 100644
--- a/templates/implementation.go
+++ b/templates/implementation.go
@@ -7,7 +7,9 @@ func GetImplementationTemplate() (*template.Template, error) {
 	return template.New("").Parse(implementationTemplate)
 }
 
-const implementationTemplate = `package {{.PackageName}}
+const implementationTemplate = `
+// Code generated by go implementation; DO NOT EDIT.
+package {{.PackageName}}
 
 import (
 	"github.com/docker/oscalkit/types/oscal/implementation"
diff --git a/templates/profile.go b/templates/profile.go
index 39e54ef2..20511c3e 100644
--- a/templates/profile.go
+++ b/templates/profile.go
@@ -11,6 +11,7 @@ func GetProfileTemplate() *template.Template {
 }
 
 const profileTemplate = `
+// Code generated by go generate; DO NOT EDIT.
 package {{.PackageName}}
 
 import (