2 files changed, 5 insertions, 1 deletions
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index d106f65fa2..685e235730 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -526,6 +526,10 @@ module ActiveModel
   class StrictValidationFailed < StandardError
   end
 
+  # Raised when attribute values are out of range.
+  class RangeError < ::RangeError
+  end
+
   # Raised when unknown attributes are supplied via mass assignment.
   class UnknownAttributeError < NoMethodError
     attr_reader :record, :attribute
diff --git a/activemodel/lib/active_model/type/integer.rb b/activemodel/lib/active_model/type/integer.rb
index 2f73ede009..eea2280b22 100644
--- a/activemodel/lib/active_model/type/integer.rb
+++ b/activemodel/lib/active_model/type/integer.rb
@@ -46,7 +46,7 @@ module ActiveModel
 
       def ensure_in_range(value)
         unless range.cover?(value)
-          raise RangeError, "#{value} is out of range for #{self.class} with limit #{_limit}"
+          raise ActiveModel::RangeError, "#{value} is out of range for #{self.class} with limit #{_limit}"
         end
       end