diff --git a/src/crand.rs b/src/crand.rs
index 44ef441..12d55e0 100644
--- a/src/crand.rs
+++ b/src/crand.rs
@@ -95,7 +95,7 @@ fn generic_standard_f64() {
     let mut rng = test_rng();
     let dist = ComplexDistribution::new(Standard, Standard);
     for _ in 0..100 {
-        let c: Complex<f64> = rng.sample(&dist);
+        let c: Complex<f64> = rng.sample(dist);
         assert!(c.re >= 0.0 && c.re < 1.0);
         assert!(c.im >= 0.0 && c.im < 1.0);
     }
@@ -111,7 +111,7 @@ fn generic_uniform_f64() {
     let dist = ComplexDistribution::new(re, im);
     for _ in 0..100 {
         // no type annotation required, since `Uniform` only produces one type.
-        let c = rng.sample(&dist);
+        let c = rng.sample(dist);
         assert!(c.re >= -100.0 && c.re < 0.0);
         assert!(c.im >= 0.0 && c.im < 100.0);
     }
@@ -126,7 +126,7 @@ fn generic_mixed_f64() {
     let dist = ComplexDistribution::new(re, Standard);
     for _ in 0..100 {
         // no type annotation required, since `Uniform` only produces one type.
-        let c = rng.sample(&dist);
+        let c = rng.sample(dist);
         assert!(c.re >= -100.0 && c.re < 0.0);
         assert!(c.im >= 0.0 && c.im < 1.0);
     }
@@ -142,7 +142,7 @@ fn generic_uniform_i32() {
     let dist = ComplexDistribution::new(re, im);
     for _ in 0..100 {
         // no type annotation required, since `Uniform` only produces one type.
-        let c = rng.sample(&dist);
+        let c = rng.sample(dist);
         assert!(c.re >= -100 && c.re < 0);
         assert!(c.im >= 0 && c.im < 100);
     }