diff --git a/openmp/runtime/src/kmp_runtime.cpp b/openmp/runtime/src/kmp_runtime.cpp
index c8a18e81810cb..a1e36243f750c 100644
--- a/openmp/runtime/src/kmp_runtime.cpp
+++ b/openmp/runtime/src/kmp_runtime.cpp
@@ -196,6 +196,12 @@ int __kmp_get_global_thread_id() {
   if (i < 0)
     return i;
 
+  // other_threads[i] can be nullptr at this point because the corresponding
+  // thread could have already been destructed. It can happen when this function
+  // is called in end library routine.
+  if (!TCR_SYNC_PTR(other_threads[i]))
+    return i;
+
   /* dynamically updated stack window for uber threads to avoid get_specific
      call */
   if (!TCR_4(other_threads[i]->th.th_info.ds.ds_stackgrow)) {