diff --git a/src/jogasaki/scheduler/flat_task.cpp b/src/jogasaki/scheduler/flat_task.cpp
index 6d140781..d9126ef5 100644
--- a/src/jogasaki/scheduler/flat_task.cpp
+++ b/src/jogasaki/scheduler/flat_task.cpp
@@ -147,7 +147,7 @@ bool flat_task::execute(tateyama::task_scheduler::context& ctx) {
     }
     VLOG_LP(log_trace) << "task begin " << *this << " job_id:" << utils::hex(req_context_->job()->id())
                        << " kind:" << kind_ << " sticky:" << sticky_ << " worker:" << ctx.index()
-                       << " stolen:" << ctx.task_is_stolen();
+                       << " stolen:" << ctx.task_is_stolen() << " last_steal_from:" << ctx.last_steal_from();
     bool ret = false;
     switch(kind_) {
         using kind = flat_task_kind;