diff --git a/trunk/Dockerfile b/trunk/Dockerfile
index 68c9c2973..9b27540de 100644
--- a/trunk/Dockerfile
+++ b/trunk/Dockerfile
@@ -56,6 +56,6 @@ RUN ldd /usr/local/srs/objs/ffmpeg/bin/ffmpeg && \
 
 # Default workdir and command.
 WORKDIR /usr/local/srs
-ENV SRS_SRS_LOG_TANK=console SRS_DAEMON=off
+ENV SRS_LOG_TANK=console SRS_DAEMON=off
 CMD ["./objs/srs", "-c", "conf/srs.conf"]