diff --git a/Model-validation.md b/Model-validation.md
index 577bb96..5b52102 100644
--- a/Model-validation.md
+++ b/Model-validation.md
@@ -55,7 +55,7 @@ func main() {
 
         // Returns InvalidValidationError for bad validation input,
         // nil or ValidationErrors ( []FieldError )
-        err := vctx.ReadJSON(&user)
+        err := ctx.ReadJSON(&user)
         if err != nil {
             // This check is only needed when your code could produce
             // an invalid value for validation such as interface with nil