diff --git a/src/lib.rs b/src/lib.rs
index 6763b8f..eee7a97 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,9 +21,9 @@ extern crate test;
 use std::{f32, f64};
 use std::ops::{Add, Sub};
 
-use coverage::Coverage;
-use mark_matrix::MarkMatrix;
-pub use weight_matrix::WeightMatrix;
+use crate::coverage::Coverage;
+use crate::mark_matrix::MarkMatrix;
+pub use crate::weight_matrix::WeightMatrix;
 
 use ndarray::Array2;
 
diff --git a/src/mark_matrix.rs b/src/mark_matrix.rs
index 6fb42c7..d7c83fe 100644
--- a/src/mark_matrix.rs
+++ b/src/mark_matrix.rs
@@ -1,4 +1,4 @@
-use SquareMatrix;
+use crate::SquareMatrix;
 
 #[derive(Clone, Copy, PartialEq, Eq, Debug)]
 #[repr(u8)]
diff --git a/src/weight_matrix.rs b/src/weight_matrix.rs
index 52db07c..85d94e7 100644
--- a/src/weight_matrix.rs
+++ b/src/weight_matrix.rs
@@ -1,6 +1,6 @@
-use WeightNum;
-use Weights;
-use SquareMatrix;
+use crate::WeightNum;
+use crate::Weights;
+use crate::SquareMatrix;
 
 #[derive(Debug)]
 pub struct WeightMatrix<T: WeightNum> {