diff --git a/src/core/variables/private/RMXVariableConstants.h b/src/core/variables/private/RMXVariableConstants.h
index 3aaf1c0..eb271d8 100644
--- a/src/core/variables/private/RMXVariableConstants.h
+++ b/src/core/variables/private/RMXVariableConstants.h
@@ -44,6 +44,6 @@ static NSString *const RMXDictionaryKeyDataType = @"dataType";
 static NSString *const RMXDictionaryKeyConstraintType = @"constraintType";
 static NSString *const RMXDictionaryKeyControlType = @"controlType";
 static NSString *const RMXDictionaryKeyTitle = @"title";
-static NSString *const RMXDictionaryKeyMinValue = @"minimumValue";
-static NSString *const RMXDictionaryKeyMaxValue = @"maximumValue";
+static NSString *const RMXDictionaryKeyMinValue = @"minValue";
+static NSString *const RMXDictionaryKeyMaxValue = @"maxValue";
 static NSString *const RMXDictionaryKeyIncrement = @"increment";