diff --git a/main.go b/main.go
index aca9966..4824608 100644
--- a/main.go
+++ b/main.go
@@ -298,10 +298,10 @@ 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":
+	case ".ts":
 		lic, err = executeTemplate(tmpl, data, "/**", " * ", " */")
-        if err {
-		    lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
+        if err != nil {
+			lic, err = executeTemplate(tmpl, data, "<!--", " ", "-->")
         }
 	default:
 		// handle various cmake files