diff --git a/src/mcts.jl b/src/mcts.jl
index c3edf1d..c02cdf6 100644
--- a/src/mcts.jl
+++ b/src/mcts.jl
@@ -131,7 +131,7 @@ function expand(a::T1, node::MCTSNode, state::T2, decisionMaker::Function, state
     @show thoughtDict
     newstate = MCTStransition(a, node.state, thoughtDict)  #[] Implement your transition function
     
-    if newstate ∉ keys(node.children) # BUG should be "key of the newstate" here not newstate
+    if newstate ∉ keys(node.children)# BUG should be "key of the newstate" here not newstate itself
       statetype = typeof(state) 
 
       # BUG should be node.children[key of newstate] here not newstate. may be a uuid