diff --git a/src/core/lib/iomgr/tcp_posix.cc b/src/core/lib/iomgr/tcp_posix.cc
index 0e153679ad7..819c5284256 100644
--- a/src/core/lib/iomgr/tcp_posix.cc
+++ b/src/core/lib/iomgr/tcp_posix.cc
@@ -443,7 +443,7 @@ static void tcp_do_read(grpc_tcp* tcp) {
   constexpr size_t cmsg_alloc_space =
       CMSG_SPACE(sizeof(grpc_core::scm_timestamping)) + CMSG_SPACE(sizeof(int));
 #else
-  constexpr size_t cmsg_alloc_space = CMSG_SPACE(sizeof(int));
+  constexpr size_t cmsg_alloc_space = 24 /* CMSG_SPACE(sizeof(int)) */;
 #endif /* GRPC_LINUX_ERRQUEUE */
   char cmsgbuf[cmsg_alloc_space];
   for (size_t i = 0; i < iov_len; i++) {