diff --git a/source/app/action/index.mjs b/source/app/action/index.mjs
index 8f92d0c6..df44c023 100644
--- a/source/app/action/index.mjs
+++ b/source/app/action/index.mjs
@@ -146,7 +146,7 @@
             info("Dry-run", true)
 
         //SVG file
-          conf.optimize = optimize
+          conf.settings.optimize = optimize
           info("SVG output", filename)
           info("SVG optimization", optimize)
           info("SVG verification after generation", verify)