diff --git a/src/config.c b/src/config.c
index bd0a1e252c7da667ea595896478ccba8061ebcce..022e8fd58dbe68154a04b04ad80593948803d11d 100644
--- a/src/config.c
+++ b/src/config.c
@@ -66,7 +66,7 @@ void loadServerConfig(char *filename) {
             }
         } else if (!strcasecmp(argv[0],"port") && argc == 2) {
             server.port = atoi(argv[1]);
-            if (server.port < 1 || server.port > 65535) {
+            if (server.port < 0 || server.port > 65535) {
                 err = "Invalid port"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"bind") && argc == 2) {