diff --git a/compiler-rt/test/asan/TestCases/Windows/queue_user_work_item_report.cpp b/compiler-rt/test/asan/TestCases/Windows/queue_user_work_item_report.cpp
--- a/compiler-rt/test/asan/TestCases/Windows/queue_user_work_item_report.cpp
+++ b/compiler-rt/test/asan/TestCases/Windows/queue_user_work_item_report.cpp
@@ -10,7 +10,7 @@
   volatile char stack_buffer[42];
   stack_buffer[subscript] = 42;
   // CHECK: AddressSanitizer: stack-buffer-underflow on address [[ADDR:0x[0-9a-f]+]]
-  // CHECK: WRITE of size 1 at [[ADDR]] thread T{{[0-9]+}}
+  // CHECK: WRITE of size 1 at [[ADDR]] thread T-1
   // CHECK:   {{#0 .* work_item.*queue_user_work_item_report.cpp}}:[[@LINE-3]]
   SetEvent(done);
   return 0;
@@ -20,7 +20,7 @@
   done = CreateEvent(0, false, false, "job is done");
   if (!done)
     return 1;
-// CHECK-NOT: Thread T1 created
+  // CHECK-NOT: Thread {{.*}} created
   QueueUserWorkItem(&work_item, nullptr, 0);
   if (WAIT_OBJECT_0 != WaitForSingleObject(done, 10 * 1000))
     return 2;