diff --git a/src/HttpBaseTest.php b/src/HttpBaseTest.php
index e23bc4f..bea67e2 100644
--- a/src/HttpBaseTest.php
+++ b/src/HttpBaseTest.php
@@ -257,7 +257,7 @@ protected function assertRequest(
 
             $name = strtoupper(str_replace('-', '_', 'http-'.$name));
 
-            if ('TRACE' === $method && 'HTTP_CONTENT_LENGTH' === $name && !isset($request['SERVER'][$name])) {
+            if (in_array($method, ['TRACE', 'HEAD'], true) && 'HTTP_CONTENT_LENGTH' === $name && !isset($request['SERVER'][$name])) {
                 continue;
             }