diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index 952b829..d2c5ba4 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -247,7 +247,7 @@
 	return 0;
 }
 
-static struct file_operations tlclk_fops = {
+static const struct file_operations tlclk_fops = {
 	.read = tlclk_read,
 	.write = tlclk_write,
 	.open = tlclk_open,