diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index fea2cf54ab1ed..d9a02a2fd85c5 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -1000,6 +1000,7 @@ libc_support_library(
         ":__support_cpp_bit",
         ":__support_cpp_type_traits",
         ":__support_macros_attributes",
+        ":__support_macros_null_check",
         ":__support_macros_optimization",
         ":__support_math_extras",
         ":llvm_libc_macros_stdfix_macros",