diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
index 05b52852e70e..ccb6cd42a67d 100644
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
@@ -611,7 +611,7 @@ extern int lprocfs_rd_atomic(struct seq_file *m, void *data);
 extern int lprocfs_wr_atomic(struct file *file, const char __user *buffer,
 			     unsigned long count, void *data);
 extern int lprocfs_rd_uint(struct seq_file *m, void *data);
-extern int lprocfs_wr_uint(struct file *file, const char *buffer,
+extern int lprocfs_wr_uint(struct file *file, const char __user *buffer,
 			   unsigned long count, void *data);
 extern int lprocfs_rd_uuid(struct seq_file *m, void *data);
 extern int lprocfs_rd_name(struct seq_file *m, void *data);