diff --git a/doc/04-schema.md b/doc/04-schema.md
index 587f9da29..cd370dff2 100644
--- a/doc/04-schema.md
+++ b/doc/04-schema.md
@@ -880,7 +880,7 @@ Optional.
 
 ### non-feature-branches
 
-A list of regex patterns of branch names that are non-numeric (e.g. "latest" or something), that will NOT be handled as feature branches. This is an array of string.
+A list of regex patterns of branch names that are non-numeric (e.g. "latest" or something), that will NOT be handled as feature branches. This is an array of strings.
 
 If you have non-numeric branch names, for example like "latest", "current", "latest-stable"
 or something, that do not look like a version number, then composer handles such branches
@@ -910,4 +910,4 @@ Then "composer show -s" will give you `versions : * dev-latest-testing`.
 
 Optional.
 
-← [Command-line interface](03-cli.md)  |  [Repositories](05-repositories.md) →
\ No newline at end of file
+← [Command-line interface](03-cli.md)  |  [Repositories](05-repositories.md) →