diff --git a/libs/dmf-engine/src/api_server.cpp b/libs/dmf-engine/src/api_server.cpp
index 7d44fcb..e7601c2 100644
--- a/libs/dmf-engine/src/api_server.cpp
+++ b/libs/dmf-engine/src/api_server.cpp
@@ -178,7 +178,7 @@ static void handle_request(const std::string& method, const std::string& path,
             }
         } else if (path == "/api/graph/start" && method == "POST") {
             auto nodes = graph.get_nodes();
-            uint16_t port = 9100;
+            uint16_t port = g_impl->port + 100;
             for (auto& node : nodes) {
                 pm.start_node(const_cast<GraphNode&>(node), g_impl->mxl_domain, port);
                 cc.register_node(node.id, port);