diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/rdar44436068/Test128BitsInteger.py b/lldb/packages/Python/lldbsuite/test/expression_command/rdar44436068/Test128BitsInteger.py
index 03424658f3ed3daf8e9425b837ec2c80165a0e20..be1d875f9041b27ba149cdfadf09c17480eee999 100644
--- a/lldb/packages/Python/lldbsuite/test/expression_command/rdar44436068/Test128BitsInteger.py
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/rdar44436068/Test128BitsInteger.py
@@ -1,4 +1,7 @@
 from lldbsuite.test import lldbinline
 from lldbsuite.test import decorators
 
-lldbinline.MakeInlineTest(__file__, globals(), None)
+lldbinline.MakeInlineTest(
+    __file__, globals(), [
+        decorators.expectedFailureAll(
+            oslist=["windows"], bugnumber="llvm.org/pr37656")])