diff --git a/shim/third-party/fast_float/BUCK b/shim/third-party/fast_float/BUCK
new file mode 100644
index 00000000000..0bb14a161fc
--- /dev/null
+++ b/shim/third-party/fast_float/BUCK
@@ -0,0 +1,14 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@shim//third-party:third_party.bzl", "third_party_library")
+
+oncall("open_source")
+
+third_party_library(
+    name = "fast_float",
+)