diff --git a/app/lib/app.ts b/app/lib/app.ts
index b67cce41..e48ac638 100644
--- a/app/lib/app.ts
+++ b/app/lib/app.ts
@@ -58,7 +58,7 @@ export class Application {
         if (!this.hasWindows()) {
             await this.newWindow()
         }
-        this.windows[0].send(event, ...args)
+        this.windows.filter(w => !w.isDestroyed())[0].send(event, ...args)
     }
 
     enableTray () {
diff --git a/app/lib/index.ts b/app/lib/index.ts
index d479f630..d6632593 100644
--- a/app/lib/index.ts
+++ b/app/lib/index.ts
@@ -39,7 +39,6 @@ const argv = parseArgs(process.argv, process.cwd())
 
 if (!app.requestSingleInstanceLock()) {
     app.quit()
-    process.exit(0)
 }
 
 if (argv.d) {
diff --git a/app/lib/window.ts b/app/lib/window.ts
index 8966e931..c7311c42 100644
--- a/app/lib/window.ts
+++ b/app/lib/window.ts
@@ -147,6 +147,10 @@ export class Window {
         this.window.webContents.send(event, ...args)
     }
 
+    isDestroyed() {
+        return !this.window || this.window.isDestroyed();
+    }
+
     private setupWindowManagement () {
         this.window.on('show', () => {
             this.visible.next(true)
diff --git a/terminus-core/src/services/hostApp.service.ts b/terminus-core/src/services/hostApp.service.ts
index 05bf11c6..6765d72a 100644
--- a/terminus-core/src/services/hostApp.service.ts
+++ b/terminus-core/src/services/hostApp.service.ts
@@ -147,6 +147,8 @@ export class HostAppService {
                 this.cliPaste.next(text)
             } else if (op === 'profile') {
                 this.cliOpenProfile.next(argv.profileName)
+            } else if (op === undefined) {
+                this.newWindow();
             } else {
                 this.secondInstance.next()
             }