2 files changed, 6 insertions, 4 deletions
diff --git a/activemodel/lib/active_model/validations.rb b/activemodel/lib/active_model/validations.rb
index c1019169e1..5f1dde4aa3 100644
--- a/activemodel/lib/active_model/validations.rb
+++ b/activemodel/lib/active_model/validations.rb
@@ -87,8 +87,7 @@ module ActiveModel
         validates_with BlockValidator, _merge_attributes(attr_names), &block
       end
 
-      # :nodoc:
-      VALID_OPTIONS_FOR_VALIDATE = [:on, :if, :unless, :prepend].freeze
+      VALID_OPTIONS_FOR_VALIDATE = [:on, :if, :unless, :prepend].freeze # :nodoc:
 
       # Adds a validation method or block to the class. This is useful when
       # overriding the +validate+ instance method becomes too unwieldy and
@@ -130,6 +129,9 @@ module ActiveModel
       #     end
       #   end
       #
+      # Note that the return value of validation methods is not relevant.
+      # It's not possible to halt the validate callback chain.
+      #
       # Options:
       # * <tt>:on</tt> - Specifies the contexts where this validation is active.
       #   Runs in all validation contexts by default (nil). You can pass a symbol
@@ -402,7 +404,7 @@ module ActiveModel
   protected
 
     def run_validations! #:nodoc:
-      run_callbacks :validate
+      _run_validate_callbacks
       errors.empty?
     end
 
diff --git a/activemodel/lib/active_model/validations/callbacks.rb b/activemodel/lib/active_model/validations/callbacks.rb
index b4301c23e4..4b58ef66e3 100644
--- a/activemodel/lib/active_model/validations/callbacks.rb
+++ b/activemodel/lib/active_model/validations/callbacks.rb
@@ -109,7 +109,7 @@ module ActiveModel
 
       # Overwrite run validations to include callbacks.
       def run_validations! #:nodoc:
-        run_callbacks(:validation) { super }
+        _run_validation_callbacks { super }
       end
     end
   end