diff --git a/libcxx/utils/libcxx/test/params.py b/libcxx/utils/libcxx/test/params.py
index 8fd3872cd8cbb..6e13ad75ea949 100644
--- a/libcxx/utils/libcxx/test/params.py
+++ b/libcxx/utils/libcxx/test/params.py
@@ -371,7 +371,7 @@ def getSuitableClangTidy(cfg):
         name="enable_benchmarks",
         choices=["no", "run", "dry-run"],
         type=str,
-        default="run",
+        default="dry-run",
         help="Whether to run the benchmarks in the test suite, to only dry-run them or to disable them entirely.",
         actions=lambda mode: [AddFeature(f"enable-benchmarks={mode}")],
     ),