diff --git a/src/lib.rs b/src/lib.rs
index 3982302d..29d18e3b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -273,7 +273,7 @@ pub enum LibolmPickleError {
     /// The payload of the pickle could not be decoded.
     #[error(transparent)]
     Decode(#[from] matrix_pickle::DecodeError),
-    /// The object could not been encoded as a pickle.
+    /// The object could not be encoded as a pickle.
     #[error(transparent)]
     Encode(#[from] matrix_pickle::EncodeError),
 }