diff --git a/openmp/runtime/src/kmp_runtime.cpp b/openmp/runtime/src/kmp_runtime.cpp
--- a/openmp/runtime/src/kmp_runtime.cpp
+++ b/openmp/runtime/src/kmp_runtime.cpp
@@ -178,7 +178,12 @@
       if (stack_diff <= stack_size) {
         /* The only way we can be closer than the allocated */
         /* stack size is if we are running on this thread. */
-        KMP_DEBUG_ASSERT(__kmp_gtid_get_specific() == i);
+        // __kmp_gtid_get_specific can return negative value because this
+        // function can be called by thread destructor. However, before the
+        // thread destructor is called, the value of the corresponding
+        // thread-specific data will be reset to NULL.
+        KMP_DEBUG_ASSERT(__kmp_gtid_get_specific() < 0 ||
+                         __kmp_gtid_get_specific() == i);
         return i;
       }
     }