diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index 4c4021d82f99..4e9a62b34aef 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -511,6 +511,10 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
 			    external_object->buffer.length);
 
 		internal_object->buffer.length = external_object->buffer.length;
+
+		/* Mark buffer data valid */
+
+		internal_object->buffer.flags |= AOPOBJ_DATA_VALID;
 		break;
 
 	case ACPI_TYPE_INTEGER:
@@ -586,6 +590,10 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
 		}
 	}
 
+	/* Mark package data valid */
+
+	package_object->package.flags |= AOPOBJ_DATA_VALID;
+
 	*internal_object = package_object;
 	return_ACPI_STATUS(status);
 }