diff --git a/docs/requirement-1.3.rst b/docs/requirement-1.3.rst
index dbdc0c3..a339885 100644
--- a/docs/requirement-1.3.rst
+++ b/docs/requirement-1.3.rst
@@ -1,4 +1,4 @@
-1.3 A high-level architecture as been defined
+1.3 A high-level architecture has been defined
 =============================================
 
 Verify that a high-level architecture for the application has been defined.