diff --git a/test/MustacheTest.php b/test/MustacheTest.php
index bd055f7..a877c03 100644
--- a/test/MustacheTest.php
+++ b/test/MustacheTest.php
@@ -283,7 +283,9 @@ class MustacheTest extends PHPUnit_Framework_TestCase {
 					}
 				}
 
-				$ret[$example] = array($class, $template, $output);
+				if (!empty($class)) {
+					$ret[$example] = array($class, $template, $output);
+				}
 			}
 
 			$files->next();