diff --git a/rand_distr/src/inverse_gaussian.rs b/rand_distr/src/inverse_gaussian.rs
index 7af645a2..195becdf 100644
--- a/rand_distr/src/inverse_gaussian.rs
+++ b/rand_distr/src/inverse_gaussian.rs
@@ -12,7 +12,7 @@ pub enum Error {
 }
 
 /// The [inverse Gaussian distribution](https://en.wikipedia.org/wiki/Inverse_Gaussian_distribution)
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 pub struct InverseGaussian<F>
 where
     F: Float,
diff --git a/rand_distr/src/normal_inverse_gaussian.rs b/rand_distr/src/normal_inverse_gaussian.rs
index 252a319d..5ccc3b64 100644
--- a/rand_distr/src/normal_inverse_gaussian.rs
+++ b/rand_distr/src/normal_inverse_gaussian.rs
@@ -12,7 +12,7 @@ pub enum Error {
 }
 
 /// The [normal-inverse Gaussian distribution](https://en.wikipedia.org/wiki/Normal-inverse_Gaussian_distribution)
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 pub struct NormalInverseGaussian<F>
 where
     F: Float,