diff --git a/src/classes/CommandOption.ts b/src/classes/CommandOption.ts
index c8a3468..efba9fd 100644
--- a/src/classes/CommandOption.ts
+++ b/src/classes/CommandOption.ts
@@ -57,7 +57,7 @@ class CommandOption implements ICommandOption {
         this.choices = def.choices || [];
         
         this.strict = def.strict || false;
-        this.type = def.type || OptionType.STRING;
+        this.type = def.type ?? OptionType.STRING;
         this.flag = def.flag || false;
 
         this.valueOptional = def.valueOptional || false;