diff --git a/criu/cr-restore.c b/criu/cr-restore.c
index 5db7cf189..bec321cfb 100644
--- a/criu/cr-restore.c
+++ b/criu/cr-restore.c
@@ -267,6 +267,10 @@ static int root_prepare_shared(void)
 	if (ret)
 		goto err;
 
+	ret = open_transport_socket();
+	if (ret)
+		goto err;
+
 	show_saved_files();
 err:
 	return ret;
@@ -603,6 +607,8 @@ static int restore_one_alive_task(int pid, CoreEntry *core)
 	if (prepare_vmas(current, ta))
 		return -1;
 
+	close_service_fd(TRANSPORT_FD_OFF);
+
 	return sigreturn_restore(pid, ta, args_len, core);
 }
 
diff --git a/criu/files.c b/criu/files.c
index a66a1424d..a29d317e6 100644
--- a/criu/files.c
+++ b/criu/files.c
@@ -1000,11 +1000,7 @@ static int serve_out_fd(int pid, int fd, struct file_desc *d)
 	int sock, ret;
 	struct fdinfo_list_entry *fle;
 
-	sock = socket(PF_UNIX, SOCK_DGRAM, 0);
-	if (sock < 0) {
-		pr_perror("Can't create socket");
-		return -1;
-	}
+	sock = get_service_fd(TRANSPORT_FD_OFF);
 
 	pr_info("\t\tCreate fd for %d\n", fd);
 
@@ -1022,7 +1018,6 @@ static int serve_out_fd(int pid, int fd, struct file_desc *d)
 
 	ret = 0;
 out:
-	close(sock);
 	return ret;
 }
 
@@ -1672,3 +1667,21 @@ char *external_lookup_by_key(char *key)
 	}
 	return NULL;
 }
+
+int open_transport_socket()
+{
+	int sock;
+
+	sock = socket(PF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+	if (sock < 0) {
+		pr_perror("Can't create socket");
+		return -1;
+	}
+	if (install_service_fd(TRANSPORT_FD_OFF, sock) < 0) {
+		close(sock);
+		return -1;
+	}
+	close(sock);
+
+	return 0;
+}
diff --git a/criu/include/files.h b/criu/include/files.h
index e0b853dc4..7513b2157 100644
--- a/criu/include/files.h
+++ b/criu/include/files.h
@@ -201,4 +201,6 @@ extern FdinfoEntry *dup_fdinfo(FdinfoEntry *old, int fd, unsigned flags);
 int dup_fle(struct pstree_item *task, struct fdinfo_list_entry *ple,
 	    int fd, unsigned flags);
 
+extern int open_transport_socket(void);
+
 #endif /* __CR_FILES_H__ */
diff --git a/criu/include/servicefd.h b/criu/include/servicefd.h
index e133752fc..a35f25aa6 100644
--- a/criu/include/servicefd.h
+++ b/criu/include/servicefd.h
@@ -19,6 +19,7 @@ enum sfd_type {
 	CGROUP_YARD,
 	USERNSD_SK,	/* Socket for usernsd */
 	NS_FD_OFF,	/* Node's net namespace fd */
+	TRANSPORT_FD_OFF, /* to transfer file descriptors */
 
 	SERVICE_FD_MAX
 };