diff --git a/src/KingSystem/ActorSystem/actBaseProcUnit.h b/src/KingSystem/ActorSystem/actBaseProcUnit.h
index 07ccbabb..4e406b9b 100644
--- a/src/KingSystem/ActorSystem/actBaseProcUnit.h
+++ b/src/KingSystem/ActorSystem/actBaseProcUnit.h
@@ -11,6 +11,8 @@ namespace ksys::act {
 class BaseProc;
 class BaseProcHandle;
 
+/// Glue code between a BaseProcHandle and its associated BaseProc.
+/// Used while a BaseProc is being created.
 class BaseProcUnit {
 public:
     enum class Status : u32 {