diff --git a/src/gn/xcode_object.cc b/src/gn/xcode_object.cc
index c9b69a3..4f2b66b 100644
--- a/src/gn/xcode_object.cc
+++ b/src/gn/xcode_object.cc
@@ -968,6 +968,7 @@
   const IndentRules rules = {false, indent + 1};
   out << indent_str << Reference() << " = {\n";
   PrintProperty(out, rules, "isa", ToString(Class()));
+  PrintProperty(out, rules, "alwaysOutOfDate", 1u);
   PrintProperty(out, rules, "buildActionMask", 0x7fffffffu);
   PrintProperty(out, rules, "files", files_);
   PrintProperty(out, rules, "inputPaths", EmptyPBXObjectVector());