diff --git a/oi/CodeGen.cpp b/oi/CodeGen.cpp
index d8696a8..98bedf7 100644
--- a/oi/CodeGen.cpp
+++ b/oi/CodeGen.cpp
@@ -221,6 +221,13 @@ void genNames(const TypeGraph& typeGraph, std::string& code) {
   code += R"(
 template <typename T>
 struct NameProvider;
+)";
+
+  code += R"(
+template <unsigned int N, unsigned int align, int32_t Id>
+struct NameProvider<DummySizedOperator<N, align, Id>> {
+  static constexpr std::array<std::string_view, 0> names = { };
+};
 )";
 
   // TODO: stop types being duplicated at this point and remove this check