Index: bindings/python/tests/cindex/test_tls_kind.py
===================================================================
--- bindings/python/tests/cindex/test_tls_kind.py
+++ bindings/python/tests/cindex/test_tls_kind.py
@@ -27,7 +27,8 @@
     # The following case tests '__declspec(thread)'.  Since it is a Microsoft
     # specific extension, specific flags are required for the parser to pick
     # these up.
-    flags = ['-fms-extensions', '-target', 'x86_64-unknown-windows-win32']
+    flags = ['-fms-compatibility-version=18.00', '-fms-extensions',
+             '-target', 'x86_64-unknown-windows-win32']
     tu = get_tu("""
 __declspec(thread) int tls_declspec;
 """, lang = 'cpp', flags=flags)
@@ -35,3 +36,10 @@
     tls_declspec = get_cursor(tu.cursor, 'tls_declspec')
     assert tls_declspec.tls_kind == TLSKind.STATIC
 
+    flags = ['-fms-extensions', '-target', 'x86_64-unknown-windows-win32']
+    tu = get_tu("""
+__declspec(thread) int tls_declspec;
+""", lang = 'cpp', flags=flags)
+
+    tls_declspec = get_cursor(tu.cursor, 'tls_declspec')
+    assert tls_declspec.tls_kind == TLSKind.DYNAMIC