diff --git a/libs/utils/Threads.cpp b/libs/utils/Threads.cpp
index f6c55e4..0b360f4 100644
--- a/libs/utils/Threads.cpp
+++ b/libs/utils/Threads.cpp
@@ -775,6 +775,7 @@
             self->mLock.lock();
             self->mRunning = false;
             self->mThreadExitedCondition.broadcast();
+            self->mThread = thread_id_t(-1); // thread id could be reused
             self->mLock.unlock();
             break;
         }