diff --git a/src/descriptor/tr.rs b/src/descriptor/tr.rs
index 2b7b5c2f..61fdad38 100644
--- a/src/descriptor/tr.rs
+++ b/src/descriptor/tr.rs
@@ -552,8 +552,10 @@ impl<'a, Pk: ToPublicKey, Ext: ParseableExt> TapLeafScript<'a, Pk, Ext> {
             TapLeafScript::Simplicity(sim) => {
                 let satisfier = crate::simplicity::SatisfierWrapper::new(satisfier);
                 let program = sim.satisfy(&satisfier).map_err(|_| Error::CouldNotSatisfy)?;
-                let program_and_witness_bytes = program.encode_to_vec();
-                Ok(vec![program_and_witness_bytes])
+                let (program_bytes,witness_bytes) = program.encode_to_vec();
+                let mut both = program_bytes;
+                both.extend(witness_bytes);
+                Ok(vec![both])
             },
         }
     }