diff --git a/lib/src/rules/GameOfLife.dart b/lib/src/rules/GameOfLife.dart
index f812233..edb2dde 100644
--- a/lib/src/rules/GameOfLife.dart
+++ b/lib/src/rules/GameOfLife.dart
@@ -4,7 +4,7 @@ import 'package:rules_of_living/src/rules/RuleSet.dart';
 import 'package:rules_of_living/src/rules/CellPattern.dart';
 
 class GameOfLife implements RuleSet {
-  int checkRange = 1;
+  int range = 1;
   List<CellPattern> patterns = <CellPattern>[
     // Two blocks, offset
     // ##
diff --git a/lib/src/rules/RuleSet.dart b/lib/src/rules/RuleSet.dart
index ad2bb70..03aeb36 100644
--- a/lib/src/rules/RuleSet.dart
+++ b/lib/src/rules/RuleSet.dart
@@ -1,7 +1,7 @@
 import 'package:rules_of_living/src/rules/CellPattern.dart';
 
 abstract class RuleSet {
-  int checkRange;
+  int range;
   List<CellPattern> patterns;
 
   bool checkSurvival(int neighbors);