diff --git a/sachy-crypto/src/lib.rs b/sachy-crypto/src/lib.rs
index 361b85c..9981068 100644
--- a/sachy-crypto/src/lib.rs
+++ b/sachy-crypto/src/lib.rs
@@ -9,8 +9,6 @@ use dhkem::{
 };
 use elliptic_curve::subtle::ConstantTimeEq;
 
-extern crate alloc;
-
 /// Error type.
 ///
 /// This type is deliberately opaque as to avoid potential side-channel
@@ -315,6 +313,8 @@ mod tests {
     use dhkem::Generate;
     use elliptic_curve::array::Array;
 
+    extern crate alloc;
+
     use super::*;
 
     #[test]