diff --git a/keycard_wallet/tests/keycard_tests.sh b/keycard_wallet/tests/keycard_tests.sh
index a2342d9c..2344f101 100755
--- a/keycard_wallet/tests/keycard_tests.sh
+++ b/keycard_wallet/tests/keycard_tests.sh
@@ -123,4 +123,4 @@ sleep 15
 echo "priv-sender state (balance should have decreased by 5):"
 wallet account get --account-id "$PRIV_SENDER"
 echo "Keycard path 1 state (balance should have increased by 5):"
-wallet account get --account-id "m/44'/60'/0'/0/1"
\ No newline at end of file
+wallet account get --account-id "m/44'/60'/0'/0/1"
diff --git a/wallet/src/account_manager.rs b/wallet/src/account_manager.rs
index a0825d04..f8d8bcbe 100644
--- a/wallet/src/account_manager.rs
+++ b/wallet/src/account_manager.rs
@@ -417,7 +417,7 @@ impl AccountManager {
                 for path in keycard_paths {
                     sigs.push(wallet.sign_message_for_path(py, path, &message_hash)?);
                 }
-                drop(wallet.close_session(py));
+                let _res = wallet.close_session(py);
                 Ok(())
             })
             .map_err(anyhow::Error::from)?;
diff --git a/wallet/src/signing.rs b/wallet/src/signing.rs
index 2ebf0e0b..505dedd9 100644
--- a/wallet/src/signing.rs
+++ b/wallet/src/signing.rs
@@ -27,7 +27,7 @@ impl KeycardSessionContext {
 
     pub fn close(self, py: Python<'_>) {
         if let Some(w) = self.wallet {
-            drop(w.close_session(py));
+            let _res = w.close_session(py);
         }
     }
 }