diff --git a/testing/web-platform/meta/html/browsers/offline/introduction-4/__dir__.ini b/testing/web-platform/meta/html/browsers/offline/introduction-4/__dir__.ini
index 8110b4d22a27..f88101dc7fb2 100644
--- a/testing/web-platform/meta/html/browsers/offline/introduction-4/__dir__.ini
+++ b/testing/web-platform/meta/html/browsers/offline/introduction-4/__dir__.ini
@@ -1 +1 @@
-lsan-allowed: [Alloc, alloc_system::platform::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$alloc_system..System$GT$::alloc, alloc_system::platform::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$alloc_system..System$GT$::realloc, mozilla::dom::ChromeUtils::GenerateQI]
+lsan-allowed: [Alloc, alloc_system::platform::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$alloc_system..System$GT$::alloc, alloc_system::platform::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$alloc_system..System$GT$::realloc, mozilla::dom::ChromeUtils::GenerateQI, std::sys::unix::alloc::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$std..alloc..System$GT$::realloc, std::sys::unix::alloc::_$LT$impl$u20$core..alloc..GlobalAlloc$u20$for$u20$std..alloc..System$GT$::alloc]