diff --git a/tutorials/HTML/Style_Dsl/README.md b/tutorials/HTML/Style_Dsl/README.md
index cd7014e637..7f29b84ff2 100644
--- a/tutorials/HTML/Style_Dsl/README.md
+++ b/tutorials/HTML/Style_Dsl/README.md
@@ -119,7 +119,7 @@ object AppStylesheet : StyleSheet() {
     val container by style {
         padding(48.px)
 
-        media(maxWidth(640.px)) {
+        media(mediaMaxWidth(640.px)) {
             self style {
                 padding(12.px)
             }