diff --git a/README.md b/README.md
index 80ed27e..4d459d6 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Initializes a new instance of the Validator class.
 
 <br/>
 
-**`__call__(self, value, metadata={}) → ValidationResult`**
+**`__call__(self, value, metadata={}) -> ValidationResult`**
 
 <ul>