diff --git a/README.md b/README.md
index d5d0ff2..b541822 100644
--- a/README.md
+++ b/README.md
@@ -321,8 +321,8 @@ For example:
 docker pull prom/statsd-exporter
 
 docker run -d -p 9102:9102 -p 9125:9125 -p 9125:9125/udp \
-        -v $PWD/statsd_mapping.conf:/tmp/statsd_mapping.conf \
-        prom/statsd-exporter -statsd.mapping-config=/tmp/statsd_mapping.conf
+        -v $PWD/statsd_mapping.yml:/tmp/statsd_mapping.yml \
+        prom/statsd-exporter --statsd.mapping-config=/tmp/statsd_mapping.yml
 ```