diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index d9e0110c437a6..e06110a75e771 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -6252,7 +6252,9 @@ libc_function(
     deps = [
         ":__support_common",
         ":__support_macros_config",
+        ":__support_macros_null_check",
         ":types_wchar_t",
+        ":wchar_utils",
     ],
 )