diff --git a/src/montgomery.rs b/src/montgomery.rs
index 46af1ce..c9ea552 100644
--- a/src/montgomery.rs
+++ b/src/montgomery.rs
@@ -157,6 +157,7 @@ impl CompressedMontgomeryU {
 
 #[cfg(test)]
 mod test {
+    use edwards::Identity;
     use super::*;
 
     /// The X25519 basepoint, in compressed Montgomery form.