diff --git a/llvm/utils/gn/secondary/clang-tools-extra/clang-tidy/objc/BUILD.gn b/llvm/utils/gn/secondary/clang-tools-extra/clang-tidy/objc/BUILD.gn
index 3837e630a1f5dc..e75b37635e4a07 100644
--- a/llvm/utils/gn/secondary/clang-tools-extra/clang-tidy/objc/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang-tools-extra/clang-tidy/objc/BUILD.gn
@@ -16,6 +16,7 @@ static_library("objc") {
     "DeallocInCategoryCheck.cpp",
     "ForbiddenSubclassingCheck.cpp",
     "MissingHashCheck.cpp",
+    "NSDateFormatterCheck.cpp",
     "NSInvocationArgumentLifetimeCheck.cpp",
     "ObjCTidyModule.cpp",
     "PropertyDeclarationCheck.cpp",