diff --git a/handlers/commands.js b/handlers/commands.js
index bf59d27..fdd4081 100644
--- a/handlers/commands.js
+++ b/handlers/commands.js
@@ -918,7 +918,9 @@ async function handleCommand(interaction) {
       await interaction.showModal(modal);
     } catch (err) {
       console.error('Signature command error:', err);
-      await interaction.reply({ content: 'Failed to open signature settings.', ephemeral: true });
+      if (!interaction.replied && !interaction.deferred) {
+        await interaction.reply({ content: 'Failed to open signature settings.', ephemeral: true }).catch(() => {});
+      }
     }
     return;
   }