diff --git a/lib/command.js b/lib/command.js
index f7e7a2ca2..c19197787 100644
--- a/lib/command.js
+++ b/lib/command.js
@@ -79,15 +79,15 @@ class Command extends EventEmitter {
     this._helpConfiguration = {};
 
     this._optionValuesProxy = new Proxy(this._optionValues, {
-      set(_, key) {
-        throw new Error(`Tried to set value of option ${key} directly.
-Use .setOptionValue() or .setOptionValueWithSource() instead`);
+      set: (_, key, value) => {
+        this.setOptionValue(key, value);
+        return true;
       },
-      deleteProperty(_, key) {
+      deleteProperty: (_, key) => {
         throw new Error(`Tried to delete value of option ${key}.
 Option value deletion is not supported`);
       },
-      defineProperty(_, key) {
+      defineProperty: (_, key) => {
         throw new Error(`Tried to configure value of option ${key} using
 - Object.defineProperty(),
 - or Object.defineProperties(),