diff --git a/sol/simple_usertype_metatable.hpp b/sol/simple_usertype_metatable.hpp
index 71ca36b1..4f94b36a 100644
--- a/sol/simple_usertype_metatable.hpp
+++ b/sol/simple_usertype_metatable.hpp
@@ -415,14 +415,14 @@ namespace sol {
 				auto& properties = umx.properties;
 				auto sic = hasindex ? &usertype_detail::simple_index_call<T, true> : &usertype_detail::simple_index_call<T, false>;
 				auto snic = hasnewindex ? &usertype_detail::simple_new_index_call<T, true> : &usertype_detail::simple_new_index_call<T, false>;
-				auto register_kvp = [&](std::size_t i, stack_reference& t, const std::string& first, object& second) {
+				auto register_kvp = [&](std::size_t meta_index, stack_reference& t, const std::string& first, object& second) {
 					meta_function mf = meta_function::construct;
-					for (std::size_t i = 1; i < properties.size(); ++i) {
-						mf = static_cast<meta_function>(i);
+					for (std::size_t j = 1; j < properties.size(); ++j) {
+						mf = static_cast<meta_function>(j);
 						const std::string& mfname = to_string(mf);
 						if (mfname != first)
 							continue;
-						properties[i] = true;
+						properties[j] = true;
 						switch (mf) {
 						case meta_function::index:
 							umx.indexfunc = second;
@@ -435,7 +435,7 @@ namespace sol {
 						}
 						break;
 					}
-					switch (i) {
+					switch (meta_index) {
 					case 0:
 						if (mf == meta_function::garbage_collect) {
 							return;