diff --git a/src/session_server.c b/src/session_server.c
index c49a9012..7ba22b9e 100644
--- a/src/session_server.c
+++ b/src/session_server.c
@@ -288,6 +288,7 @@ nc_sock_bind_inet(int sock, const char *address, uint16_t port, int is_ipv4)
     struct sockaddr_storage saddr;
     struct sockaddr_in *saddr4;
     struct sockaddr_in6 *saddr6;
+    int opt = 1;
 
     memset(&saddr, 0, sizeof(struct sockaddr_storage));
 
@@ -307,6 +308,11 @@ nc_sock_bind_inet(int sock, const char *address, uint16_t port, int is_ipv4)
             return -1;
         }
 
+        if (setsockopt(sock, IPPROTO_IP, IP_FREEBIND, &opt, sizeof(opt))) {
+            ERR(NULL, "Could not bind (%s).", strerror(errno));
+            return -1;
+        }
+
         if (bind(sock, (struct sockaddr *)saddr4, sizeof(struct sockaddr_in)) == -1) {
             ERR(NULL, "Could not bind %s:%" PRIu16 " (%s).", address, port, strerror(errno));
             return -1;
@@ -328,6 +334,11 @@ nc_sock_bind_inet(int sock, const char *address, uint16_t port, int is_ipv4)
             return -1;
         }
 
+        if (setsockopt(sock, IPPROTO_IPV6, IPV6_FREEBIND, &opt, sizeof(opt))) {
+            ERR(NULL, "Could not bind (%s).", strerror(errno));
+            return -1;
+        }
+
         if (bind(sock, (struct sockaddr *)saddr6, sizeof(struct sockaddr_in6)) == -1) {
             ERR(NULL, "Could not bind [%s]:%" PRIu16 " (%s).", address, port, strerror(errno));
             return -1;