diff --git a/app/lib/app.ts b/app/lib/app.ts
index bfe156e0..5a0e3c48 100644
--- a/app/lib/app.ts
+++ b/app/lib/app.ts
@@ -31,7 +31,7 @@ export class Application {
         this.useBuiltinGraphics()
         this.ptyManager.init(this)
 
-        ipcMain.on('app:save-config', async (event, config) => {
+        ipcMain.handle('app:save-config', async (event, config) => {
             await saveConfig(config)
             this.broadcastExcept('host:config-change', event.sender, config)
         })
diff --git a/tabby-electron/src/services/hostApp.service.ts b/tabby-electron/src/services/hostApp.service.ts
index 8eb2d841..299a4d1f 100644
--- a/tabby-electron/src/services/hostApp.service.ts
+++ b/tabby-electron/src/services/hostApp.service.ts
@@ -58,8 +58,8 @@ export class ElectronHostAppService extends HostAppService {
         this.electron.ipcRenderer.send('app:new-window')
     }
 
-    saveConfig (data: string): void {
-        this.electron.ipcRenderer.send('app:save-config', data)
+    async saveConfig (data: string): Promise<void> {
+        await this.electron.ipcRenderer.invoke('app:save-config', data)
     }
 
     emitReady (): void {
diff --git a/tabby-electron/src/services/platform.service.ts b/tabby-electron/src/services/platform.service.ts
index 30b7fc4a..806a15dd 100644
--- a/tabby-electron/src/services/platform.service.ts
+++ b/tabby-electron/src/services/platform.service.ts
@@ -109,7 +109,7 @@ export class ElectronPlatformService extends PlatformService {
     }
 
     async saveConfig (content: string): Promise<void> {
-        this.hostApp.saveConfig(content)
+        await this.hostApp.saveConfig(content)
     }
 
     getConfigPath (): string|null {