diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index e53165622..6857a20a3 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -366,7 +366,7 @@ type TCPInfo struct {
 }
 
 // SizeOfTCPInfo is the binary size of a TCPInfo struct.
-const SizeOfTCPInfo = 104
+var SizeOfTCPInfo = int(binary.Size(TCPInfo{}))
 
 // Control message types, from linux/socket.h.
 const (
diff --git a/test/syscalls/linux/proc_net_tcp.cc b/test/syscalls/linux/proc_net_tcp.cc
index 578b20680..2ca7b6ad7 100644
--- a/test/syscalls/linux/proc_net_tcp.cc
+++ b/test/syscalls/linux/proc_net_tcp.cc
@@ -187,9 +187,9 @@ TEST(ProcNetTCP, EntryUID) {
   std::vector<TCPEntry> entries =
       ASSERT_NO_ERRNO_AND_VALUE(ProcNetTCPEntries());
   TCPEntry e;
-  EXPECT_TRUE(FindByLocalAddr(entries, &e, sockets->first_addr()));
+  ASSERT_TRUE(FindByLocalAddr(entries, &e, sockets->first_addr()));
   EXPECT_EQ(e.uid, geteuid());
-  EXPECT_TRUE(FindByRemoteAddr(entries, &e, sockets->first_addr()));
+  ASSERT_TRUE(FindByRemoteAddr(entries, &e, sockets->first_addr()));
   EXPECT_EQ(e.uid, geteuid());
 }