diff --git a/aos/vision/debug/tcp-source.cc b/aos/vision/debug/tcp-source.cc
index 28feff3..37c38d5 100644
--- a/aos/vision/debug/tcp-source.cc
+++ b/aos/vision/debug/tcp-source.cc
@@ -76,7 +76,8 @@
    public:
     Impl(const std::string &hostname, int portno,
          DebugFrameworkInterface *interface)
-        : aos::events::TcpClient(hostname.c_str(), portno), interface_(interface) {}
+        : aos::events::TcpClient(hostname.c_str(), portno),
+          interface_(interface) {}
 
     void ReadEvent() override {
       read_.up(fd(), [&](DataRef data) {