diff --git a/librustzcash-wrapper/src/lib.rs b/librustzcash-wrapper/src/lib.rs
index 0fe909d..64e2317 100644
--- a/librustzcash-wrapper/src/lib.rs
+++ b/librustzcash-wrapper/src/lib.rs
@@ -1831,7 +1831,7 @@ pub extern "C" fn rust_wrapper_create_transaction(
                     marshall_to_haskell_var(&x, out, out_len, RW);
                 },
                 Error::ChangeRequired(y1) => {
-                    println!("Change required {:#?}", y1);
+                    println!("Change required {:?}", y1);
                     let x = Hhex {bytes: vec![1]};
                     marshall_to_haskell_var(&x, out, out_len, RW);
                 },