diff --git a/src/interface.jl b/src/interface.jl
index 112e39b..e072f51 100755
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -42,7 +42,7 @@ using CommUtils
     mqttClient::Union{mqttClient, Nothing} = nothing 
     msgMeta::Union{Dict, Nothing} = nothing 
 
-    thought::String = "" # internal thinking area
+    context::String = "" # internal thinking area
 
     """ Dict(Role=> Content)  ;   Role can be system, user, assistant
       Example: