diff --git a/libcxx/utils/libcxx/test/format.py b/libcxx/utils/libcxx/test/format.py
index 229da224994f4..7e5281c0b7406 100644
--- a/libcxx/utils/libcxx/test/format.py
+++ b/libcxx/utils/libcxx/test/format.py
@@ -265,7 +265,6 @@ def getTestsForPath(self, testSuite, pathInSuite, litConfig, localConfig):
             "[.]sh[.][^.]+$",
             "[.]gen[.][^.]+$",
             "[.]verify[.]cpp$",
-            "[.]fail[.]cpp$",
         ]
 
         sourcePath = testSuite.getSourcePath(pathInSuite)