diff --git a/librustzcash-wrapper/src/lib.rs b/librustzcash-wrapper/src/lib.rs
index 6abf905..d15036e 100644
--- a/librustzcash-wrapper/src/lib.rs
+++ b/librustzcash-wrapper/src/lib.rs
@@ -2039,6 +2039,7 @@ pub extern "C" fn rust_wrapper_create_transaction(
                         marshall_to_haskell_var(&x, out, out_len, RW);
                     },
                     Error::ChangeRequired(y1) => {
+                        println!("change req: {:?}", y1);
                         let x = Hhex {bytes: vec![1]};
                         marshall_to_haskell_var(&x, out, out_len, RW);
                     },