diff --git a/changes/ticket40183 b/changes/ticket40183
new file mode 100644
index 0000000000..3c4bdf21e2
--- /dev/null
+++ b/changes/ticket40183
@@ -0,0 +1,4 @@
+  o Minor bugfixes (port configuration):
+    - Second non ORPort of a different family (ex: SocksPort [::1]:9050) was
+      ignored due to a logical configuration parsing error. Fixes bug 40183;
+      bugfix on 0.4.5.1-alpha.
diff --git a/src/app/config/config.c b/src/app/config/config.c
index 458067af4d..04a82a5c43 100644
--- a/src/app/config/config.c
+++ b/src/app/config/config.c
@@ -5934,13 +5934,12 @@ port_parse_config(smartlist_t *out,
   char *unix_socket_path = NULL;
   port_cfg_t *cfg = NULL;
   bool addr_is_explicit = false;
-  int family = -1;
-
-  /* Parse default address. This can fail for Unix socket for instance so
-   * family can be -1 and the default_addr will be made UNSPEC. */
   tor_addr_t default_addr = TOR_ADDR_NULL;
+
+  /* Parse default address. This can fail for Unix socket so the default_addr
+   * will simply be made UNSPEC. */
   if (defaultaddr) {
-    family = tor_addr_parse(&default_addr, defaultaddr);
+    tor_addr_parse(&default_addr, defaultaddr);
   }
 
   /* If there's no FooPort, then maybe make a default one. */
@@ -6018,7 +6017,6 @@ port_parse_config(smartlist_t *out,
         port = 1;
     } else if (!strcasecmp(addrport, "auto")) {
       port = CFG_AUTO_PORT;
-      tor_assert(family >= 0);
       tor_addr_copy(&addr, &default_addr);
     } else if (!strcasecmpend(addrport, ":auto")) {
       char *addrtmp = tor_strndup(addrport, strlen(addrport)-5);
@@ -6035,18 +6033,12 @@ port_parse_config(smartlist_t *out,
          "9050" might be a valid address. */
       port = (int) tor_parse_long(addrport, 10, 0, 65535, &ok, NULL);
       if (ok) {
-        tor_assert(family >= 0);
         tor_addr_copy(&addr, &default_addr);
       } else if (tor_addr_port_lookup(addrport, &addr, &ptmp) == 0) {
         if (ptmp == 0) {
           log_warn(LD_CONFIG, "%sPort line has address but no port", portname);
           goto err;
         }
-        if (family != -1 && tor_addr_family(&addr) != family) {
-          /* This means we are parsing another ORPort family but we are
-           * attempting to find the default address' family ORPort. */
-          goto ignore;
-        }
         port = ptmp;
         addr_is_explicit = true;
       } else {
diff --git a/src/feature/relay/relay_config.c b/src/feature/relay/relay_config.c
index 6504c680eb..ea03f43e13 100644
--- a/src/feature/relay/relay_config.c
+++ b/src/feature/relay/relay_config.c
@@ -228,15 +228,16 @@ remove_duplicate_orports(smartlist_t *ports)
         continue;
       }
       /* Same address family and same port number, we have a match. */
-      if (!current->explicit_addr && next->explicit_addr &&
-          tor_addr_family(&current->addr) == tor_addr_family(&next->addr) &&
+      if (tor_addr_family(&current->addr) == tor_addr_family(&next->addr) &&
           current->port == next->port) {
         /* Remove current because next is explicitly set. */
         removing[i] = true;
-        char *next_str = tor_strdup(describe_relay_port(next));
-        log_warn(LD_CONFIG, "Configuration port %s superseded by %s",
-                 describe_relay_port(current), next_str);
-        tor_free(next_str);
+        if (!current->explicit_addr && next->explicit_addr) {
+          char *next_str = tor_strdup(describe_relay_port(next));
+          log_warn(LD_CONFIG, "Configuration port %s superseded by %s",
+                   describe_relay_port(current), next_str);
+          tor_free(next_str);
+        }
       }
     }
   }
diff --git a/src/test/test_config.c b/src/test/test_config.c
index a0278f9422..d680ab31ef 100644
--- a/src/test/test_config.c
+++ b/src/test/test_config.c
@@ -6855,9 +6855,15 @@ test_config_duplicate_orports(void *arg)
   port_parse_config(ports, config_port, "OR", CONN_TYPE_OR_LISTENER, "[::]",
                     0, CL_PORT_SERVER_OPTIONS);
 
-  // There should be three ports at this point.
-  tt_int_op(smartlist_len(ports), OP_EQ, 3);
+  /* There should be 4 ports at this point that is:
+   *    - 0.0.0.0:9050
+   *    - [::]:9050
+   *    - [::1]:9050
+   *    - [::1]:9050
+   */
+  tt_int_op(smartlist_len(ports), OP_EQ, 4);
 
+  /* This will remove the [::] and the extra [::1]. */
   remove_duplicate_orports(ports);
 
   // The explicit IPv6 port should have replaced the implicit IPv6 port.
@@ -6869,6 +6875,33 @@ test_config_duplicate_orports(void *arg)
   config_free_lines(config_port);
 }
 
+static void
+test_config_multifamily_port(void *arg)
+{
+  (void) arg;
+
+  config_line_t *config_port = NULL;
+  smartlist_t *ports = smartlist_new();
+
+  config_line_append(&config_port, "SocksPort", "9050");
+  config_line_append(&config_port, "SocksPort", "[::1]:9050");
+
+  // Parse IPv4, then IPv6.
+  port_parse_config(ports, config_port, "SOCKS", CONN_TYPE_AP_LISTENER,
+                    "0.0.0.0", 9050, 0);
+
+  /* There should be 2 ports at this point that is:
+   *    - 0.0.0.0:9050
+   *    - [::1]:9050
+   */
+  tt_int_op(smartlist_len(ports), OP_EQ, 2);
+
+ done:
+  SMARTLIST_FOREACH(ports, port_cfg_t *, cfg, port_cfg_free(cfg));
+  smartlist_free(ports);
+  config_free_lines(config_port);
+}
+
 #ifndef COCCI
 #define CONFIG_TEST(name, flags)                          \
   { #name, test_config_ ## name, flags, NULL, NULL }
@@ -6937,5 +6970,6 @@ struct testcase_t config_tests[] = {
   CONFIG_TEST(kvline_parse, 0),
   CONFIG_TEST(getinfo_config_names, 0),
   CONFIG_TEST(duplicate_orports, 0),
+  CONFIG_TEST(multifamily_port, 0),
   END_OF_TESTCASES
 };