diff --git a/bots/discord/src/commands/moderation/mute.ts b/bots/discord/src/commands/moderation/mute.ts
index 1e34236..1032a21 100644
--- a/bots/discord/src/commands/moderation/mute.ts
+++ b/bots/discord/src/commands/moderation/mute.ts
@@ -63,7 +63,7 @@ export default new ModerationCommand({
             createModerationActionEmbed('Muted', user, executor.user, reason, Math.ceil(expires / 1000)),
         )
 
-        if (duration)
+        if (Number.isSafeInteger(expires))
             setTimeout(() => {
                 removeRolePreset(member, 'mute')
             }, duration)
diff --git a/bots/discord/src/commands/moderation/role-preset.ts b/bots/discord/src/commands/moderation/role-preset.ts
index 9e9f689..04f3038 100644
--- a/bots/discord/src/commands/moderation/role-preset.ts
+++ b/bots/discord/src/commands/moderation/role-preset.ts
@@ -78,7 +78,7 @@ export default new ModerationCommand({
             )
         }
 
-        if (expires)
+        if (Number.isSafeInteger(expires))
             setTimeout(() => {
                 removeRolePreset(member, preset)
             }, expires)