diff --git a/functions.php b/functions.php
index a4afc77..1c38d8b 100644
--- a/functions.php
+++ b/functions.php
@@ -257,7 +257,7 @@ function display_thumbnails($dir, $file_prefix, $title)
 	$thumb_dir = "$dir/thumbnails";
 	if (! is_dir($thumb_dir)) {
 		if (! mkdir($thumb_dir, 0775))
-			echo "<p>Unable to make '$thum_dir' directory. You will need to create it manually.</p>";
+			echo "<p>Unable to make '$thumb_dir' directory. You will need to create it manually.</p>";
 			print_r(error_get_last());
 	}