4 files changed, 7 insertions, 5 deletions
diff --git a/nitrocli/src/error.rs b/nitrocli/src/error.rs
index ea9a189..81d7de9 100644
--- a/nitrocli/src/error.rs
+++ b/nitrocli/src/error.rs
@@ -17,7 +17,6 @@
 // * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 // *************************************************************************
 
-use libhid;
 use std::fmt;
 use std::io;
 use std::string;
diff --git a/nitrocli/src/main.rs b/nitrocli/src/main.rs
index ebc0589..67a0a22 100644
--- a/nitrocli/src/main.rs
+++ b/nitrocli/src/main.rs
@@ -17,8 +17,8 @@
 // * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 // *************************************************************************
 
-
 #![deny(missing_docs)]
+#![warn(rust_2018_compatibility)]
 
 //! Nitrocli is a program providing a command line interface to certain
 //! commands of the Nitrokey Storage device.
@@ -31,13 +31,14 @@ mod error;
 mod nitrokey;
 mod pinentry;
 
-use error::Error;
 use std::mem;
 use std::process;
 use std::result;
 use std::thread;
 use std::time;
 
+use crate::error::Error;
+
 type Result<T> = result::Result<T, Error>;
 type NitroFunc = Fn(&mut libhid::Handle) -> Result<()>;
 
diff --git a/nitrocli/src/nitrokey.rs b/nitrocli/src/nitrokey.rs
index 83f5d1f..64685e2 100644
--- a/nitrocli/src/nitrokey.rs
+++ b/nitrocli/src/nitrokey.rs
@@ -17,10 +17,11 @@
 // * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 // *************************************************************************
 
-use crc32::crc;
 use std::cmp;
 use std::mem;
 
+use crate::crc32::crc;
+
 
 // The Nitrokey Storage vendor ID.
 pub const VID: u16 = 0x20A0;
diff --git a/nitrocli/src/pinentry.rs b/nitrocli/src/pinentry.rs
index 7bf1db9..b4695ec 100644
--- a/nitrocli/src/pinentry.rs
+++ b/nitrocli/src/pinentry.rs
@@ -17,9 +17,10 @@
 // * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 // *************************************************************************
 
-use error::Error;
 use std::process;
 
+use crate::error::Error;
+
 
 /// PIN type requested from pinentry.
 ///