diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index b1eb376..1f31699 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -507,7 +507,7 @@
 	return count;
 }
 
-struct file_operations acpi_processor_limit_fops = {
+const struct file_operations acpi_processor_limit_fops = {
 	.owner = THIS_MODULE,
 	.open = acpi_processor_limit_open_fs,
 	.read = seq_read,