diff --git a/README.md b/README.md
index 8139ce7..1fe7246 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ for i in {0..3}; do docker run --rm -d --net=host --ipc=host --shm-size=8G -v /t
 
 1 UDP synchronizer:
 ```bash
-docker run -d --rm -v /tmp:/tmp --name=udp-sync paulscherrerinstitute/std-daq-buffer ./std_udp_sync example_detector.json 16
+docker run -d --rm -v /tmp:/tmp --name=udp-sync paulscherrerinstitute/std-daq-buffer ./std_udp_sync example_detector.json
 ```
 
 1 Image assembler: