diff --git a/api/part1/standard/sections/clause_9_requirements_class_subsystems.adoc b/api/part1/standard/sections/clause_9_requirements_class_subsystems.adoc
index 3f2e66d0..0c575f97 100644
--- a/api/part1/standard/sections/clause_9_requirements_class_subsystems.adoc
+++ b/api/part1/standard/sections/clause_9_requirements_class_subsystems.adoc
@@ -84,7 +84,7 @@ Some systems have interchangeable components that are often called "payloads" (e
 
 By default, the <<clause-canonical-system-rep,canonical `System` resources endpoint>> only exposes top-level systems (i.e. subsystems are not visible).
 
-Likewise, <<clause-subsystem-resources-endpoint,Subsystem resources endpointw>> only expose the direct subsystems, but not subsystems nested at deeper levels (i.e. the subsystems of the subsystems and so on).
+Likewise, <<clause-subsystem-resources-endpoint,Subsystem resources endpoints>> only expose the direct subsystems, but not subsystems nested at deeper levels (i.e. the subsystems of the subsystems and so on).
 
 The `recursive` query parameter changes the default behavior by instructing the server to process all subsystems recursively (at all levels below the current level).