1 files changed, 3 insertions, 0 deletions
diff --git a/src/rt/rust_task.cpp b/src/rt/rust_task.cpp
index 061e87ebff8..ad2e8a71ae5 100644
--- a/src/rt/rust_task.cpp
+++ b/src/rt/rust_task.cpp
@@ -680,6 +680,9 @@ void
 rust_task::signal_event(void *event) {
     scoped_lock with(lifecycle_lock);
 
+    assert(task_state_blocked == state ||
+           task_state_running == state);
+
     this->event = event;
     event_reject = true;
     if(task_state_blocked == state) {