diff --git a/libconfig/src/lib.rs b/libconfig/src/lib.rs
index 0378e5f..0b42072 100644
--- a/libconfig/src/lib.rs
+++ b/libconfig/src/lib.rs
@@ -2,7 +2,7 @@
 extern crate alloc;
 
 use core::fmt;
-use alloc::{string::FromUtf8Error, string::String, vec::Vec, rc::Rc};
+use alloc::{string::FromUtf8Error, string::String, vec::Vec, rc::Rc, str};
 use core_io::{self as io, BufRead, BufReader, Read, Write, Seek, ErrorKind, SeekFrom};
 use libboard_zynq::sdio;
 
@@ -163,7 +163,7 @@ impl Config {
             let dir = root_dir.create_dir("/CONFIG")?;
             for r in dir.iter() {
                 let entry = r?;
-                if entry.isfile() {
+                if entry.is_file() {
                     dir.remove(str::from_utf8(entry.short_file_name_as_bytes()).unwrap())?;
                 }
             }
@@ -227,6 +227,7 @@ impl Config {
     pub fn remove<'b>(&mut self, key: &str) -> Result<'b, ()>{
         self.remove_config_txt(key)?;
         self.remove_config_key_bin(key)?;
+        Ok(())
     }
     pub fn write_str<'b>(&mut self, key: &str, data: &str) -> Result<'b, ()>{
         if let Some(fs) = &self.fs {