diff --git a/config.php b/config.php
index 8ef1db7..8dc9260 100644
--- a/config.php
+++ b/config.php
@@ -10,6 +10,6 @@ $text = "Click or drop image here...";
 $datadir = "i";
 
 // Length of filenames
-$hashlen = 8;
+$length = 8;
 
 ?>
diff --git a/upload.php b/upload.php
index 70692a7..7c5018c 100644
--- a/upload.php
+++ b/upload.php
@@ -9,20 +9,20 @@ if(!is_dir($datadir)) {
 if(isset($_FILES['upload'])) {
 	$extension = pathinfo($_FILES['upload']['name'], PATHINFO_EXTENSION);
 	if($extension == 'jpg' || $extension == 'jpeg' || $extension == 'png') {
-		$filename = generate_hash($hashlen) . '.' . $extension;
+		$filename = generate_filename($length) . '.' . $extension;
 		move_uploaded_file($_FILES['upload']['tmp_name'], $datadir . '/' . $filename);
 		echo json_encode(['datadir' => $datadir, 'filename' => $filename]);
 	}
 }
 
-function generate_hash(int $length) {
-	$hash = "";
+function generate_filename($length) {
+	$filename = "";
 	for($i = 0; $i < $length; $i++) {
 		$chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
 		$random_char = $chars[rand(0, strlen($chars) - 1)];
-		$hash = $hash . $random_char;
+		$filename = $filename . $random_char;
 	}	
-	return $hash;
+	return $filename;
 }
 
 ?>