diff --git a/src/core/security/server_secure_chttp2.c b/src/core/security/server_secure_chttp2.c
index 6bda8a360c94fa9ae4e5e6f6022c5bc2b93e3dc6..d1468e40e05d8cc95aa45f021c861e7a4392c4c1 100644
--- a/src/core/security/server_secure_chttp2.c
+++ b/src/core/security/server_secure_chttp2.c
@@ -209,7 +209,7 @@ int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr,
         tcp, (struct sockaddr *)&resolved->addrs[i].addr,
         resolved->addrs[i].len);
     port_temp = grpc_tcp_listener_get_port(listener);
-    if (port_temp >= 0) {
+    if (port_temp > 0) {
       if (port_num == -1) {
         port_num = port_temp;
       } else {
diff --git a/src/core/surface/server_chttp2.c b/src/core/surface/server_chttp2.c
index 08691c858b978f5f7a2136e452938f960225c306..5ce7c1955b88bb5f9130cc35b0bdb805fe6aa0df 100644
--- a/src/core/surface/server_chttp2.c
+++ b/src/core/surface/server_chttp2.c
@@ -109,7 +109,7 @@ int grpc_server_add_insecure_http2_port(grpc_server *server, const char *addr) {
         tcp, (struct sockaddr *)&resolved->addrs[i].addr,
         resolved->addrs[i].len);
     port_temp = grpc_tcp_listener_get_port(listener);
-    if (port_temp >= 0) {
+    if (port_temp > 0) {
       if (port_num == -1) {
         port_num = port_temp;
       } else {