diff --git a/src/Rotation.php b/src/Rotation.php
index 5f1e2b5..7b6525b 100644
--- a/src/Rotation.php
+++ b/src/Rotation.php
@@ -181,7 +181,7 @@ private function sucessfull(string $filenameSource, ?string $filenameRotated): v
      */
     private function canRotate(string $filename): bool
     {
-        if (!is_file($filename)) {
+        if (!file_exists($filename)) {
             return false;
         }
 
@@ -209,7 +209,7 @@ private function initProcessorFile(string $filename): void
      */
     private function fileIsValid(string $filename): bool
     {
-        return is_writable($filename);
+        return is_file($filename) && is_writable($filename);
     }
 
     /**