diff --git a/run-tests.php b/run-tests.php
index 96f47775bbdae..53ef88c20b3c6 100755
--- a/run-tests.php
+++ b/run-tests.php
@@ -2527,6 +2527,10 @@ function run_test($php, $file, $env)
 
 	show_file_block('out', $output);
 
+	if ($preload) {
+		$output = trim(preg_replace("/Warning: Can't preload .*\n/", "", $output));
+	}
+
 	if (isset($section_text['EXPECTF']) || isset($section_text['EXPECTREGEX'])) {
 
 		if (isset($section_text['EXPECTF'])) {