diff --git a/21-constructivist/README.md b/21-constructivist/README.md
index a026e55..d2bb5f0 100644
--- a/21-constructivist/README.md
+++ b/21-constructivist/README.md
@@ -1,4 +1,4 @@
-Style #20
+Style #21
 ==============================
 
 Constraints: