diff --git a/activemodel/lib/active_model/lint.rb b/activemodel/lib/active_model/lint.rb
index 1be2913f0b182a0169457acb7c90f45bc059affb..46b446dc085d0a0f35312a3d8475ada013add4a1 100644
--- a/activemodel/lib/active_model/lint.rb
+++ b/activemodel/lib/active_model/lint.rb
@@ -98,7 +98,7 @@ def test_errors_aref
 
       private
         def model
-          assert @model.respond_to?(:to_model), "The object should respond_to to_model"
+          assert @model.respond_to?(:to_model), "The object should respond to to_model"
           @model.to_model
         end