diff --git a/test/syscalls/linux/socket_netlink_route.cc b/test/syscalls/linux/socket_netlink_route.cc
index dac631741..e958ca556 100644
--- a/test/syscalls/linux/socket_netlink_route.cc
+++ b/test/syscalls/linux/socket_netlink_route.cc
@@ -162,12 +162,18 @@ void CheckLinkMsg(const struct nlmsghdr* hdr, const Link& link) {
       reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
   EXPECT_EQ(msg->ifi_index, link.index);
 
-  const struct rtattr* rta = FindRtAttr(hdr, msg, IFLA_IFNAME);
-  EXPECT_NE(nullptr, rta) << "IFLA_IFNAME not found in message.";
-  if (rta != nullptr) {
-    std::string name(reinterpret_cast<const char*>(RTA_DATA(rta)));
+  const struct rtattr* rta_name = FindRtAttr(hdr, msg, IFLA_IFNAME);
+  EXPECT_NE(nullptr, rta_name) << "IFLA_IFNAME not found in message.";
+  if (rta_name != nullptr) {
+    std::string name(reinterpret_cast<const char*>(RTA_DATA(rta_name)));
     EXPECT_EQ(name, link.name);
   }
+  const struct rtattr* rta_mtu = FindRtAttr(hdr, msg, IFLA_MTU);
+  EXPECT_NE(nullptr, rta_mtu) << "IFLA_MTU not found in message.";
+  if (rta_mtu != nullptr) {
+    const auto mtu = *(reinterpret_cast<uint32_t*>(RTA_DATA(rta_mtu)));
+    EXPECT_EQ(mtu, link.mtu);
+  }
 }
 
 TEST(NetlinkRouteTest, GetLinkByIndex) {
diff --git a/test/syscalls/linux/socket_netlink_route_util.cc b/test/syscalls/linux/socket_netlink_route_util.cc
index 13fd7d789..5289e83d9 100644
--- a/test/syscalls/linux/socket_netlink_route_util.cc
+++ b/test/syscalls/linux/socket_netlink_route_util.cc
@@ -270,8 +270,8 @@ PosixErrorOr<std::vector<Link>> DumpLinks() {
     }
     const struct ifinfomsg* msg =
         reinterpret_cast<const struct ifinfomsg*>(NLMSG_DATA(hdr));
-    const auto* rta = FindRtAttr(hdr, msg, IFLA_IFNAME);
-    if (rta == nullptr) {
+    const auto* rta_name = FindRtAttr(hdr, msg, IFLA_IFNAME);
+    if (rta_name == nullptr) {
       // Ignore links that do not have a name.
       return;
     }
@@ -280,7 +280,11 @@ PosixErrorOr<std::vector<Link>> DumpLinks() {
     links.back().index = msg->ifi_index;
     links.back().type = msg->ifi_type;
     links.back().name =
-        std::string(reinterpret_cast<const char*>(RTA_DATA(rta)));
+        std::string(reinterpret_cast<const char*>(RTA_DATA(rta_name)));
+    const auto* rta_mtu = FindRtAttr(hdr, msg, IFLA_MTU);
+    links.back().mtu = rta_mtu == nullptr
+                           ? 0
+                           : *reinterpret_cast<uint32_t*>(RTA_DATA(rta_mtu));
   }));
   return links;
 }
diff --git a/test/syscalls/linux/socket_netlink_route_util.h b/test/syscalls/linux/socket_netlink_route_util.h
index 2c4d6071f..a8f5e8efd 100644
--- a/test/syscalls/linux/socket_netlink_route_util.h
+++ b/test/syscalls/linux/socket_netlink_route_util.h
@@ -29,6 +29,7 @@ struct Link {
   int index;
   int16_t type;
   std::string name;
+  uint32_t mtu;
 };
 
 PosixError DumpLinks(const FileDescriptor& fd, uint32_t seq,