diff --git a/main.ts b/main.ts
index 12e91f4..4a286d3 100644
--- a/main.ts
+++ b/main.ts
@@ -258,6 +258,7 @@ class AtomicSettingTab extends PluginSettingTab {
             .addText(text => text
                 .setPlaceholder('sk-...')
                 .setValue(this.plugin.settings.apiKey)
+                .then(text => text.inputEl.type = 'password')
                 .onChange(async (value) => {
                     this.plugin.settings.apiKey = value;
                     await this.plugin.saveSettings();