diff --git a/cmdapp/src/svg.rs b/cmdapp/src/svg.rs
index e265810..2cc1aab 100644
--- a/cmdapp/src/svg.rs
+++ b/cmdapp/src/svg.rs
@@ -34,6 +34,7 @@ impl SvgFile {
 impl fmt::Display for SvgFile {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         writeln!(f, r#"<?xml version="1.0" encoding="UTF-8"?>"#)?;
+        writeln!(f, r#"<!-- Generator: visioncortex VTracer {} -->"#, env!("CARGO_PKG_VERSION"))?;
         writeln!(f,
             r#"<svg version="1.1" xmlns="http://www.w3.org/2000/svg" width="{}" height="{}">"#,
             self.width, self.height