diff --git a/Library/Core/Validatable.swift b/Library/Core/Validatable.swift
index 3467513..f965a6c 100644
--- a/Library/Core/Validatable.swift
+++ b/Library/Core/Validatable.swift
@@ -21,7 +21,7 @@ public struct ValidationError: Error, CustomStringConvertible {
 
 public protocol Validatable {
   /**
-   Validates this entity and throws if it encounters a invalid situation, a validatable should also validate it sub-validatables if it has any.
+   Validates this entity and throws if it encounters an invalid situation, a validatable should also validate it sub-validatables if it has any.
 
    - throws: If there the configuration error a ValidationError is thrown
    */