diff --git a/gql_graph.go b/gql_graph.go
index 82e88a3..323efa6 100644
--- a/gql_graph.go
+++ b/gql_graph.go
@@ -727,6 +727,7 @@ func GQLSubscribeFn(p graphql.ResolveParams, fn func(GraphSignal, graphql.Resolv
 
   c := make(chan interface{})
   go func(c chan interface{}, server *GQLThread) {
+    ctx.Log.Logf("gqlws", "GQL_SUBSCRIBE_THREAD_START")
     sig_c := server.UpdateChannel(0)
     for {
       val, ok := <- sig_c