diff --git a/README.md b/README.md
index d75e797..971e174 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[!insert-coin](https://coinsh.red/p/logo.png)
+![insert-coin](https://coinsh.red/p/logo-big.png)
 
 insert-coin's a lightweight & simple image-uploading/URL-shortening service.
 
diff --git a/beam.php b/beam.php
index e952a76..10c948d 100644
--- a/beam.php
+++ b/beam.php
@@ -11,8 +11,15 @@ echo("\n<main>\n");
 if (!empty($_POST["desired_filename"]))
 {
 	$file_name = $_POST["desired_filename"];
-	$file_name = sanitize_filename($file_name);
-	$dest_file = $file_beam_dir . $file_name;
+
+	if (!pathinfo($file_name, PATHINFO_EXTENSION))
+	{
+		$file_name = $file_name . "." .
+			(pathinfo($_FILES["fileToUpload"]["name"],
+				PATHINFO_EXTENSION));
+	}
+
+	echo($file_name);
 
 	$beaming_permitted = 0;
 }
@@ -29,6 +36,9 @@ else
 	$beaming_permitted = 1;
 }
 
+$file_name = sanitize_filename($file_name);
+$dest_file = $file_beam_dir . $file_name;
+
 if (file_exists($dest_file))
 {
 	$beaming_permitted = 2;