diff --git a/cmd/gio/jsbuild.go b/cmd/gio/jsbuild.go
index 03862aae..3f561d1b 100644
--- a/cmd/gio/jsbuild.go
+++ b/cmd/gio/jsbuild.go
@@ -21,6 +21,7 @@ func buildJS(bi *buildInfo) error {
 	cmd := exec.Command(
 		"go",
 		"build",
+		"-ldflags=-w -s "+bi.ldflags,
 		"-o", filepath.Join(out, "main.wasm"),
 		bi.pkg,
 	)