diff --git a/repos/libports/src/lib/libc/socket_fs_plugin.cc b/repos/libports/src/lib/libc/socket_fs_plugin.cc
index 9b26266049..29c17bdea5 100644
--- a/repos/libports/src/lib/libc/socket_fs_plugin.cc
+++ b/repos/libports/src/lib/libc/socket_fs_plugin.cc
@@ -502,6 +502,7 @@ extern "C" int socket_fs_bind(int libc_fd, sockaddr const *addr, socklen_t addrl
 	int const len = strlen(addr_string.base());
 	int const n   = write(context->bind_fd(), addr_string.base(), len);
 	if (n != len) return Errno(EACCES);
+	fsync(context->bind_fd());
 
 	return 0;
 }