diff --git a/main.go b/main.go
index bee76c4..1cee4d6 100644
--- a/main.go
+++ b/main.go
@@ -276,7 +276,7 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 	base := strings.ToLower(filepath.Base(path))
 
 	switch fileExtension(base) {
-	case ".c", ".h", ".gv", ".java", ".scala", ".kt", ".kts":
+	case ".c", ".h", ".gv", ".java", ".scala", ".kt", ".kts", ".qml":
 		lic, err = executeTemplate(tmpl, data, "/*", " * ", " */")
 	case ".js", ".mjs", ".cjs", ".jsx", ".tsx", ".css", ".scss", ".sass", ".ts":
 		lic, err = executeTemplate(tmpl, data, "/**", " * ", " */")
@@ -290,7 +290,7 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 		lic, err = executeTemplate(tmpl, data, "", "% ", "")
 	case ".hs", ".sql", ".sdl":
 		lic, err = executeTemplate(tmpl, data, "", "-- ", "")
-	case ".html", ".xml", ".vue", ".wxi", ".wxl", ".wxs":
+	case ".html", ".xml", ".vue", ".wxi", ".wxl", ".wxs", ".ts":
 		lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
 	case ".php":
 		lic, err = executeTemplate(tmpl, data, "", "// ", "")
@@ -298,11 +298,19 @@ func licenseHeader(path string, tmpl *template.Template, data licenseData) ([]by
 		lic, err = executeTemplate(tmpl, data, "{#", "", "#}")
 	case ".ml", ".mli", ".mll", ".mly":
 		lic, err = executeTemplate(tmpl, data, "(**", "   ", "*)")
+    case ".ts":
+		lic, err = executeTemplate(tmpl, data, "/**", " * ", " */")
+        if err {
+		    lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
+        }
 	default:
 		// handle various cmake files
 		if base == "cmakelists.txt" || strings.HasSuffix(base, ".cmake.in") || strings.HasSuffix(base, ".cmake") {
 			lic, err = executeTemplate(tmpl, data, "", "# ", "")
 		}
+		if base == "Jenkinsfile" || strings.HasSuffix(base, ".groovy" {
+			lic, err = executeTemplate(tmpl, data, "", "// ", "")
+		}
 	}
 	return lic, err
 }
diff --git a/tmpl.go b/tmpl.go
index 83da7f2..7130ed4 100644
--- a/tmpl.go
+++ b/tmpl.go
@@ -89,7 +89,7 @@ func executeTemplate(t *template.Template, d licenseData, top, mid, bot string)
 	return out.Bytes(), nil
 }
 
-const tmplCommercial = `Copyright {{.Holder}} {{ if .Year }} 2023-{{.Year}}{{ end }}
+const tmplCommercial = `Copyright {{.Holder}} {{ if .Year }} {{.Year}}{{ end }}
 
 You can not use the contents of the file in any way without
 AVROID, Ltd. written permission.