diff --git a/README.md b/README.md
index 125597c..f12dae8 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 [![Go Reference](https://pkg.go.dev/badge/github.com/ridge/must.svg)](https://pkg.go.dev/github.com/ridge/must)
 
     must.OK(os.Unsetenv("FOO"))
-    bs := must.Bytes(json.Marshal(dataStructureDefinedInCode))
+    bs := must.OK1(json.Marshal(dataStructureDefinedInCode))
     defer must.Do(f.Close)
 
 is