diff --git a/crates/btcio/src/bitcoind.rs b/crates/btcio/src/bitcoind.rs
index c4dc0e5..e6b99a9 100644
--- a/crates/btcio/src/bitcoind.rs
+++ b/crates/btcio/src/bitcoind.rs
@@ -657,5 +657,7 @@ mod test {
         assert!(got <= block_hash_first);
         assert!(got <= block_hash_mid);
         assert!(got <= block_hash_last);
+
+        drop(bitcoind);
     }
 }