diff --git a/src/core/lib/iomgr/timer_manager.cc b/src/core/lib/iomgr/timer_manager.cc
index 55be919..26de216 100644
--- a/src/core/lib/iomgr/timer_manager.cc
+++ b/src/core/lib/iomgr/timer_manager.cc
@@ -277,7 +277,6 @@
     g_threaded = true;
     start_timer_thread_and_unlock();
   } else {
-    g_threaded = false;
     gpr_mu_unlock(&g_mu);
   }
 }