diff --git a/y2019/vision/server/server.cc b/y2019/vision/server/server.cc
index c9e7091..309a90c 100644
--- a/y2019/vision/server/server.cc
+++ b/y2019/vision/server/server.cc
@@ -28,8 +28,7 @@
 #include "y2019/control_loops/superstructure/superstructure_status_generated.h"
 #include "y2019/vision/server/server_data.pb.h"
 
-namespace y2019 {
-namespace vision {
+namespace y2019::vision {
 
 namespace chrono = ::std::chrono;
 
@@ -279,8 +278,7 @@
   event_loop.Run();
 }
 
-}  // namespace vision
-}  // namespace y2019
+}  // namespace y2019::vision
 
 int main(int argc, char **argv) {
   // Make sure to reference this to force the linker to include it.
diff --git a/y2019/vision/server/www/generate_camera.cc b/y2019/vision/server/www/generate_camera.cc
index 455b0a9..c673aec 100644
--- a/y2019/vision/server/www/generate_camera.cc
+++ b/y2019/vision/server/www/generate_camera.cc
@@ -4,8 +4,7 @@
 #include "y2019/constants.h"
 #include "y2019/vision/constants.h"
 
-namespace y2019 {
-namespace vision {
+namespace y2019::vision {
 void DumpPose(std::basic_ostream<char> *o, const vision::CameraGeometry &pose) {
   *o << "{x: " << pose.location[0] << ", y: " << pose.location[1]
      << ", theta: " << pose.heading << "}";
@@ -23,8 +22,7 @@
   }
   out_file << "];\n";
 }
-}  // namespace vision
-}  // namespace y2019
+}  // namespace y2019::vision
 
 int main(int argc, char *argv[]) {
   if (argc != 2) {