diff --git a/modules/openapi-generator/src/test/resources/3_0/scala_reserved_words.yaml b/modules/openapi-generator/src/test/resources/3_0/scala_reserved_words.yaml
index 8eb0885bd8b..f91139e7aae 100644
--- a/modules/openapi-generator/src/test/resources/3_0/scala_reserved_words.yaml
+++ b/modules/openapi-generator/src/test/resources/3_0/scala_reserved_words.yaml
@@ -75,6 +75,9 @@ components:
           type: string
         foobar:
           type: boolean
+        created_at:
+          type: string
+          format: date-time
       required:
         - id
         - try
@@ -82,3 +85,4 @@ components:
         - finally
         - lazy
         - foobar
+        - created_at
diff --git a/modules/openapi-generator/src/test/resources/codegen/scala/SomeObj.scala.txt b/modules/openapi-generator/src/test/resources/codegen/scala/SomeObj.scala.txt
index 0a055fed673..52725e7e123 100644
--- a/modules/openapi-generator/src/test/resources/codegen/scala/SomeObj.scala.txt
+++ b/modules/openapi-generator/src/test/resources/codegen/scala/SomeObj.scala.txt
@@ -36,7 +36,8 @@ case class SomeObj (
   `lazy`: String,
   `private`: Option[String] = None,
   `type`: Option[String] = None,
-  foobar: Boolean
+  foobar: Boolean,
+  createdAt: DateTime
 ) extends ApiModel
 
 object SomeObjEnums {