diff --git a/packages/framework/src/Foundation/Kernel/Filesystem.php b/packages/framework/src/Foundation/Kernel/Filesystem.php
index a207efa3d21..891e5e1b0c3 100644
--- a/packages/framework/src/Foundation/Kernel/Filesystem.php
+++ b/packages/framework/src/Foundation/Kernel/Filesystem.php
@@ -204,7 +204,11 @@ public function findFiles(string $directory, string|false $matchExtension = fals
 
         // Optionally match file extensions (case-insensitively)
         if ($matchExtension !== false) {
-            $finder->name('/\.' . preg_quote($matchExtension, '/') . '$/i');
+            // Normalize input by removing a leading dot if present
+            $normalizedExtension = ltrim($matchExtension, '.');
+
+            // Use a case-insensitive regex to match file extensions
+            $finder->name('/\.' . preg_quote($normalizedExtension, '/') . '$/i');
         }
 
         // Collect relative paths
diff --git a/packages/framework/tests/Unit/FilesystemFindFilesTest.php b/packages/framework/tests/Unit/FilesystemFindFilesTest.php
index 35eee65066a..c535b61d037 100644
--- a/packages/framework/tests/Unit/FilesystemFindFilesTest.php
+++ b/packages/framework/tests/Unit/FilesystemFindFilesTest.php
@@ -130,6 +130,13 @@ public function testFindFilesWithCaseInsensitiveExtensionFilter()
         $this->assertSameArray(['file.MD', 'another_file.md'], 'directory', 'MD');
     }
 
+    public function testFindFilesWithLeadingDotInFileExtension()
+    {
+        $this->files(['directory/file.md', 'directory/another_file.md', 'directory/ignored.txt']);
+        $this->assertSameArray(['file.md', 'another_file.md'], 'directory', 'md');
+        $this->assertSameArray(['file.md', 'another_file.md'], 'directory', '.md');
+    }
+
     public function testFindFilesHandlesLargeNumberOfFiles()
     {
         $this->files(array_map(fn ($i) => "directory/file$i.md", range(1, 100)));