diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 5be436e..2fc5255 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -364,6 +364,7 @@
 static const struct file_operations proc_sys_file_operations = {
 	.read		= proc_sys_read,
 	.write		= proc_sys_write,
+	.llseek		= default_llseek,
 };
 
 static const struct file_operations proc_sys_dir_file_operations = {