diff --git a/app/Rules/UniqueScheduledTimePerRemoteServer.php b/app/Rules/UniqueScheduledTimePerRemoteServer.php
index 8868f967..6df9cffb 100644
--- a/app/Rules/UniqueScheduledTimePerRemoteServer.php
+++ b/app/Rules/UniqueScheduledTimePerRemoteServer.php
@@ -14,7 +14,8 @@ class UniqueScheduledTimePerRemoteServer implements ValidationRule
     public function __construct(
         public int $remoteServerId,
         public ?int $taskId = null,
-    ) {}
+    ) {
+    }
 
     public function validate(string $attribute, mixed $value, Closure $fail): void
     {
diff --git a/app/Services/Backup/Destinations/Local.php b/app/Services/Backup/Destinations/Local.php
index b5c1e244..b6283855 100644
--- a/app/Services/Backup/Destinations/Local.php
+++ b/app/Services/Backup/Destinations/Local.php
@@ -19,7 +19,8 @@ class Local implements BackupDestinationInterface
     public function __construct(
         protected SFTPInterface $sftp,
         protected string $storagePath
-    ) {}
+    ) {
+    }
 
     /**
      * @return array<string>
@@ -94,7 +95,7 @@ public function ensureDirectoryExists(string $path): bool
 
         $listResult = $this->sftp->exec('ls -la ' . escapeshellarg($path));
 
-        if (! empty($listResult)) {
+        if (! ($listResult === false || ($listResult === '' || $listResult === '0'))) {
             Log::info('Directory already exists', ['path' => $path]);
 
             return true;
diff --git a/app/Services/Backup/Destinations/S3.php b/app/Services/Backup/Destinations/S3.php
index a5c9adf7..2d8e076f 100644
--- a/app/Services/Backup/Destinations/S3.php
+++ b/app/Services/Backup/Destinations/S3.php
@@ -25,7 +25,8 @@ class S3 implements BackupDestinationInterface
     public function __construct(
         protected S3Client $client,
         protected string $bucketName
-    ) {}
+    ) {
+    }
 
     /**
      * @return array<string>
diff --git a/tests/Feature/RemoteServers/Livewire/CreateRemoteServerFormTest.php b/tests/Feature/RemoteServers/Livewire/CreateRemoteServerFormTest.php
index 1ea2d3ce..91257f2c 100644
--- a/tests/Feature/RemoteServers/Livewire/CreateRemoteServerFormTest.php
+++ b/tests/Feature/RemoteServers/Livewire/CreateRemoteServerFormTest.php
@@ -104,7 +104,7 @@
         ->assertHasErrors(['port']);
 });
 
-test('username is set correctly after provider method called', function () {
+test('username is set correctly after provider method called', function (): void {
     Toaster::fake();
 
     $component = Livewire::test(CreateRemoteServerForm::class)
diff --git a/tests/Unit/Services/Backup/Destinations/LocalTest.php b/tests/Unit/Services/Backup/Destinations/LocalTest.php
index 4978577e..fbfa480b 100644
--- a/tests/Unit/Services/Backup/Destinations/LocalTest.php
+++ b/tests/Unit/Services/Backup/Destinations/LocalTest.php
@@ -64,7 +64,7 @@
             $this->mockLocal->shouldReceive('ensureDirectoryExists')->andReturn(true);
             $this->mockSftp->shouldReceive('mkdir')->andReturn(true);
             $this->mockSftp->shouldReceive('getLastError')->andReturn('');
-            $this->mockSftp->shouldReceive('exec')->withArgs(function ($command) {
+            $this->mockSftp->shouldReceive('exec')->withArgs(function ($command): bool {
                 return str_starts_with($command, 'ls -la ');
             })->andReturn('');
         });
@@ -84,7 +84,7 @@
 
             Log::shouldReceive('info');
             Log::shouldReceive('warning')->atLeast()->once()->withAnyArgs();
-            Log::shouldReceive('error')->atLeast()->once()->withArgs(function ($message) {
+            Log::shouldReceive('error')->atLeast()->once()->withArgs(function ($message): bool {
                 return str_contains($message, 'Failed to stream file to remote local storage');
             });