diff --git a/core/static/core/README.md b/core/static/core/README.md
index 5321674..49335ff 100644
--- a/core/static/core/README.md
+++ b/core/static/core/README.md
@@ -17,5 +17,5 @@
 3. Show CSS to SASS live
 
     ```
-    sass --watch -t compressed sass/estilos.sass:css/estilos.min.css
+    sass --watch -t compressed --sourcemap=none sass/estilos.sass:css/estilos.min.css
     ```