diff --git a/tests/apps.php b/tests/apps.php
index 1a9071aa2d3bf..d845cdf47c1db 100644
--- a/tests/apps.php
+++ b/tests/apps.php
@@ -14,7 +14,7 @@ function loadDirectory($path): void {
 		return;
 	}
 
-	while ($name = readdir($dh)) {
+	while (($name = readdir($dh)) !== false) {
 		if ($name[0] === '.') {
 			continue;
 		}