diff --git a/mcp_servers.json b/mcp_servers.json
index 47da902..68d9313 100644
--- a/mcp_servers.json
+++ b/mcp_servers.json
@@ -34,7 +34,8 @@
     "args": ["-m", "app.mcp_server"],
     "cwd": "/home/gmikcon/Projects/navi-1/mcp-servers/navi-3d",
     "env": {
-      "SESSION_FILES_DIR": "/home/gmikcon/Projects/navi-1/session_files"
+      "SESSION_FILES_DIR": "/home/gmikcon/Projects/navi-1/session_files",
+      "NAVI_3D_MCP_TRANSPORT": "stdio"
     },
     "groups": {
       "modeling": [