diff --git a/tests/pdf.rs b/tests/pdf.rs
index 47b00ef739..1bbbd32d55 100644
--- a/tests/pdf.rs
+++ b/tests/pdf.rs
@@ -9,7 +9,7 @@
 #![allow(clippy::float_cmp)]
 
 use average::Histogram;
-use rand::Rng;
+use rand::{Rng, SeedableRng};
 use rand_distr::{Normal, SkewNormal};
 
 const HIST_LEN: usize = 100;