diff --git a/v3/internal/templates/_base/default/main.go.tmpl b/v3/internal/templates/_base/default/main.go.tmpl
index 7edc1c8b1b9..2459529e9a2 100644
--- a/v3/internal/templates/_base/default/main.go.tmpl
+++ b/v3/internal/templates/_base/default/main.go.tmpl
@@ -16,7 +16,7 @@ func main() {
 		Name:        "{{.ProjectName}}",
 		Description: "A demo of using raw HTML & CSS",
         Assets: application.AssetOptions{
-			FS: assets,
+			Handler: application.AssetFileServerFS(assets),
 		},
 		Mac: application.MacOptions{
 			ApplicationShouldTerminateAfterLastWindowClosed: true,
diff --git a/v3/internal/templates/_common/main.go.tmpl b/v3/internal/templates/_common/main.go.tmpl
index b45568336eb..e4b1a628d4d 100644
--- a/v3/internal/templates/_common/main.go.tmpl
+++ b/v3/internal/templates/_common/main.go.tmpl
@@ -34,7 +34,7 @@ func main() {
 			&GreetService{},
 		},
 		Assets: application.AssetOptions{
-			FS: assets,
+			Handler: application.AssetFileServerFS(assets),
 		},
 		Mac: application.MacOptions{
 			ApplicationShouldTerminateAfterLastWindowClosed: true,