diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3069a08..4e6542a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 **1.2.1**
 
 * bugfix: new line after while for pretty printing
+* bugfix: build in unary function with multiple arguments
 
 **1.2.0**