diff --git a/single/sol/sol.hpp b/single/sol/sol.hpp
index f9b5eb9c..638f5a49 100644
--- a/single/sol/sol.hpp
+++ b/single/sol/sol.hpp
@@ -20,8 +20,8 @@
 // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 // This file was generated with a script.
-// Generated 2016-08-20 01:06:43.957511 UTC
-// This header was generated with sol v2.11.4 (revision 1ae78e1)
+// Generated 2016-08-20 01:37:43.229767 UTC
+// This header was generated with sol v2.11.5 (revision e31ed71)
 // https://github.com/ThePhD/sol2
 
 #ifndef SOL_SINGLE_INCLUDE_HPP
@@ -4860,10 +4860,12 @@ namespace sol {
 				index = lua_absindex(L, index);
 				T arr;
 				get_field<false, true>(L, static_cast<lua_Integer>(-1), index);
-				optional<std::size_t> sizehint = pop<optional<std::size_t>>(L);
-				if (sizehint) {
-					detail::reserve(arr, *sizehint);
+				int isnum;
+				std::size_t sizehint = static_cast<std::size_t>(lua_tointegerx(L, -1, &isnum));
+				if (isnum == 0) {
+					detail::reserve(arr, sizehint);
 				}
+				lua_pop(L, 1);
 #if SOL_LUA_VERSION >= 503
 				// This method is HIGHLY performant over regular table iteration thanks to the Lua API changes in 5.3
 				for (lua_Integer i = 0; ; ++i, lua_pop(L, 1)) {
diff --git a/sol/stack_get.hpp b/sol/stack_get.hpp
index dc7363eb..1c71a9e3 100644
--- a/sol/stack_get.hpp
+++ b/sol/stack_get.hpp
@@ -83,14 +83,15 @@ namespace sol {
 				typedef typename T::value_type V;
 				tracking.use(1);
 
-
 				index = lua_absindex(L, index);
 				T arr;
 				get_field<false, true>(L, static_cast<lua_Integer>(-1), index);
-				optional<std::size_t> sizehint = pop<optional<std::size_t>>(L);
-				if (sizehint) {
-					detail::reserve(arr, *sizehint);
+				int isnum;
+				std::size_t sizehint = static_cast<std::size_t>(lua_tointegerx(L, -1, &isnum));
+				if (isnum == 0) {
+					detail::reserve(arr, sizehint);
 				}
+				lua_pop(L, 1);
 #if SOL_LUA_VERSION >= 503
 				// This method is HIGHLY performant over regular table iteration thanks to the Lua API changes in 5.3
 				for (lua_Integer i = 0; ; ++i, lua_pop(L, 1)) {