diff --git a/ModuleClientAPI.md b/ModuleClientAPI.md
index 3f718ce..6275c2b 100644
--- a/ModuleClientAPI.md
+++ b/ModuleClientAPI.md
@@ -58,7 +58,7 @@ api.finishClientCondition(conditionId);
 
 ### onPropertyUpdate
 
-Register a listener for when a property updates in a scene change.
+Register a listener for when a property updates in a scene change. The listener will also be called on initial module creation.
 
 ```javascript
 api.onPropertyUpdate(propertyId, callback);
diff --git a/ModuleServerAPI.md b/ModuleServerAPI.md
index 1de3165..f5fbf2f 100644
--- a/ModuleServerAPI.md
+++ b/ModuleServerAPI.md
@@ -274,7 +274,7 @@ api.onNewClient(callback);
 
 ### onModulePropertyUpdate
 
-Register a listener for when a module property updates.
+Register a listener for when a module property updates. The listener will also be triggered on initial module creation and when the server starts up.
 
 ```javascript
 api.onModulePropertyUpdate(propertyId, callback);