diff --git a/single/sol/sol.hpp b/single/sol/sol.hpp
index a20d2453..7a28d353 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 2018-05-14 17:21:18.007667 UTC
-// This header was generated with sol v2.20.0 (revision f8ee7ab)
+// Generated 2018-05-20 19:25:19.981188 UTC
+// This header was generated with sol v2.20.1 (revision 4f366a1)
 // https://github.com/ThePhD/sol2
 
 #ifndef SOL_SINGLE_INCLUDE_HPP
@@ -9728,11 +9728,7 @@ namespace stack {
 		static optional<T> get(lua_State* L, int index, Handler&& handler, record& tracking) {
 			// actually check if it's none here, otherwise
 			// we'll have a none object inside an optional!
-#if defined(SOL_SAFE_REFERENCES) && SOL_SAFE_REFERENCES
 			bool success = stack::check<T>(L, index, no_panic);
-#else
-			bool success = !lua_isnone(L, index);
-#endif
 			if (!success) {
 				// expected type, actual type
 				tracking.use(static_cast<int>(success));
diff --git a/single/sol/sol_forward.hpp b/single/sol/sol_forward.hpp
index 8a1497f0..8cf2b83f 100644
--- a/single/sol/sol_forward.hpp
+++ b/single/sol/sol_forward.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 2018-05-14 17:21:18.351259 UTC
-// This header was generated with sol v2.20.0 (revision f8ee7ab)
+// Generated 2018-05-20 19:25:20.251908 UTC
+// This header was generated with sol v2.20.1 (revision 4f366a1)
 // https://github.com/ThePhD/sol2
 
 #ifndef SOL_SINGLE_INCLUDE_FORWARD_HPP
diff --git a/sol/stack_check_get.hpp b/sol/stack_check_get.hpp
index a4514b00..9d3b07e7 100644
--- a/sol/stack_check_get.hpp
+++ b/sol/stack_check_get.hpp
@@ -53,11 +53,7 @@ namespace stack {
 		static optional<T> get(lua_State* L, int index, Handler&& handler, record& tracking) {
 			// actually check if it's none here, otherwise
 			// we'll have a none object inside an optional!
-#if defined(SOL_SAFE_REFERENCES) && SOL_SAFE_REFERENCES
 			bool success = stack::check<T>(L, index, no_panic);
-#else
-			bool success = !lua_isnone(L, index);
-#endif
 			if (!success) {
 				// expected type, actual type
 				tracking.use(static_cast<int>(success));