diff --git a/libimagcounter/src/counter.rs b/libimagcounter/src/counter.rs
index 18d5ca30..bea7537e 100644
--- a/libimagcounter/src/counter.rs
+++ b/libimagcounter/src/counter.rs
@@ -1,7 +1,4 @@
-use std::convert::From;
-use std::convert::Into;
 use std::ops::DerefMut;
-use std::ops::Deref;
 
 use toml::Value;
 
@@ -11,8 +8,6 @@ use libimagstore::store::Store;
 use libimagstore::storeid::StoreIdIterator;
 use libimagstore::store::FileLockEntry;
 use libimagstore::storeid::StoreId;
-use libimagstore::error::StoreError;
-use libimagstore::store::Entry;
 use libimagstore::storeid::IntoStoreId;
 
 use module_path::ModuleEntryPath;
@@ -33,7 +28,7 @@ impl<'a> Counter<'a> {
 
         debug!("Creating new counter: '{}' with value: {}", name, init);
         let fle = {
-            let mut lockentry = store.create(ModuleEntryPath::new(name.clone()).into_storeid());
+            let lockentry = store.create(ModuleEntryPath::new(name.clone()).into_storeid());
             if lockentry.is_err() {
                 return Err(CE::new(CEK::StoreWriteError, Some(Box::new(lockentry.err().unwrap()))));
             }
@@ -105,8 +100,7 @@ impl<'a> Counter<'a> {
     }
 
     pub fn name(&self) -> Result<CounterName> {
-        let mut header = self.fle.deref().get_header();
-        header.read("counter.name")
+        self.fle.get_header().read("counter.name")
             .map_err(|e| CE::new(CEK::StoreWriteError, Some(Box::new(e))))
             .and_then(|v| {
                 match v {
@@ -117,8 +111,7 @@ impl<'a> Counter<'a> {
     }
 
     pub fn value(&self) -> Result<i64> {
-        let mut header = self.fle.deref().get_header();
-        header.read("counter.value")
+        self.fle.get_header().read("counter.value")
             .map_err(|e| CE::new(CEK::StoreWriteError, Some(Box::new(e))))
             .and_then(|v| {
                 match v {
diff --git a/libimagcounter/src/error.rs b/libimagcounter/src/error.rs
index 78d0cf46..f1c842f7 100644
--- a/libimagcounter/src/error.rs
+++ b/libimagcounter/src/error.rs
@@ -1,9 +1,7 @@
 use std::error::Error;
 use std::fmt::Error as FmtError;
 use std::clone::Clone;
-use std::fmt::{Debug, Display, Formatter};
-use std::fmt;
-use std::convert::From;
+use std::fmt::{Display, Formatter};
 
 /**
  * Kind of error
diff --git a/libimagcounter/src/lib.rs b/libimagcounter/src/lib.rs
index 8b7a333a..77033170 100644
--- a/libimagcounter/src/lib.rs
+++ b/libimagcounter/src/lib.rs
@@ -1,3 +1,17 @@
+#![deny(
+    non_camel_case_types,
+    non_snake_case,
+    path_statements,
+    trivial_numeric_casts,
+    unstable_features,
+    unused_allocation,
+    unused_import_braces,
+    unused_imports,
+    unused_mut,
+    unused_qualifications,
+    while_true,
+)]
+
 extern crate toml;
 #[macro_use] extern crate log;
 #[macro_use] extern crate semver;