diff --git a/src/unix/unix_c/unix_get_network_information_utils.c b/src/unix/unix_c/unix_get_network_information_utils.c
index 7efaf6bf6..12248dcd5 100644
--- a/src/unix/unix_c/unix_get_network_information_utils.c
+++ b/src/unix/unix_c/unix_get_network_information_utils.c
@@ -102,9 +102,6 @@ char *s_strdup(const char *s)
 }
 #endif
 
-CAMLexport value alloc_inet_addr(struct in_addr *inaddr);
-CAMLexport value alloc_inet6_addr(struct in6_addr *inaddr);
-
 static value alloc_one_addr(char const *a)
 {
     struct in_addr addr;
diff --git a/src/unix/unix_c/unix_getaddrinfo_job.c b/src/unix/unix_c/unix_getaddrinfo_job.c
index f0a79c4d6..04b79fbbf 100644
--- a/src/unix/unix_c/unix_getaddrinfo_job.c
+++ b/src/unix/unix_c/unix_getaddrinfo_job.c
@@ -51,8 +51,10 @@ static value convert_addrinfo(struct addrinfo *a)
     vcanonname =
         caml_copy_string(a->ai_canonname == NULL ? "" : a->ai_canonname);
     vres = caml_alloc_small(5, 0);
-    Field(vres, 0) = cst_to_constr(a->ai_family, socket_domain_table, 3, 0);
-    Field(vres, 1) = cst_to_constr(a->ai_socktype, socket_type_table, 4, 0);
+    Field(vres, 0) =
+      cst_to_constr(a->ai_family, caml_unix_socket_domain_table, 3, 0);
+    Field(vres, 1) =
+      cst_to_constr(a->ai_socktype, caml_unix_socket_type_table, 4, 0);
     Field(vres, 2) = Val_int(a->ai_protocol);
     Field(vres, 3) = vaddr;
     Field(vres, 4) = vcanonname;
@@ -97,11 +99,11 @@ CAMLprim value lwt_unix_getaddrinfo_job(value node, value service, value hints)
         if (Is_block(v)) switch (Tag_val(v)) {
                 case 0: /* AI_FAMILY of socket_domain */
                     job->hints.ai_family =
-                        socket_domain_table[Int_val(Field(v, 0))];
+                        caml_unix_socket_domain_table[Int_val(Field(v, 0))];
                     break;
                 case 1: /* AI_SOCKTYPE of socket_type */
                     job->hints.ai_socktype =
-                        socket_type_table[Int_val(Field(v, 0))];
+                        caml_unix_socket_type_table[Int_val(Field(v, 0))];
                     break;
                 case 2: /* AI_PROTOCOL of int */
                     job->hints.ai_protocol = Int_val(Field(v, 0));
diff --git a/src/unix/unix_c/unix_recv_send_utils.h b/src/unix/unix_c/unix_recv_send_utils.h
index 5f0df4369..f4b9bd76d 100644
--- a/src/unix/unix_c/unix_recv_send_utils.h
+++ b/src/unix/unix_c/unix_recv_send_utils.h
@@ -27,12 +27,18 @@
 
 #include <caml/mlvalues.h>
 #include <caml/socketaddr.h>
+#include <caml/version.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
 
+#if OCAML_VERSION_MAJOR < 5
+#define caml_unix_socket_domain_table socket_domain_table
+#define caml_unix_socket_type_table socket_type_table
+#endif
+
 extern int msg_flag_table[];
-extern int socket_domain_table[];
-extern int socket_type_table[];
+extern int caml_unix_socket_domain_table[];
+extern int caml_unix_socket_type_table[];
 extern void get_sockaddr(value mladdr, union sock_addr_union *addr /*out*/,
                          socklen_t *addr_len /*out*/);
 value wrapper_recv_msg(int fd, int n_iovs, struct iovec *iovs);