diff --git a/doc/04-schema.md b/doc/04-schema.md
index 8cdb3117a..de22c551a 100644
--- a/doc/04-schema.md
+++ b/doc/04-schema.md
@@ -35,7 +35,7 @@ separated by `/`. Examples:
 * igorw/event-source
 
 The name must be lowercase and consist of words separated by `-`, `.` or `_`.
-The complete name should match `^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]?|-{0,2})[a-z0-9]+)*$`.
+The complete name should match `^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]|-{1,2})?[a-z0-9]+)*$`.
 
 The `name` property is required for published packages (libraries).