diff --git a/trunk/Dockerfile b/trunk/Dockerfile
index 616b3a7a2..393dca737 100644
--- a/trunk/Dockerfile
+++ b/trunk/Dockerfile
@@ -9,14 +9,13 @@ WORKDIR /trunk
 RUN ./configure --srt=on --jobs=2 && make -j2 && make install
 
 # All config files for SRS.
-RUN cp -R conf /usr/local/srs/conf
-# The default index.html and srs-console.
-RUN cp research/api-server/static-dir/index.html /usr/local/srs/objs/nginx/html/
-RUN cp research/api-server/static-dir/favicon.ico /usr/local/srs/objs/nginx/html/
-RUN cp research/players/crossdomain.xml /usr/local/srs/objs/nginx/html/
-RUN cp -R research/console /usr/local/srs/objs/nginx/html/
-RUN cp -R research/players /usr/local/srs/objs/nginx/html/
-RUN cp -R 3rdparty/signaling/www/demos /usr/local/srs/objs/nginx/html/
+RUN cp -R conf /usr/local/srs/conf && \
+    cp research/api-server/static-dir/index.html /usr/local/srs/objs/nginx/html/ && \
+    cp research/api-server/static-dir/favicon.ico /usr/local/srs/objs/nginx/html/ && \
+    cp research/players/crossdomain.xml /usr/local/srs/objs/nginx/html/ && \
+    cp -R research/console /usr/local/srs/objs/nginx/html/ && \
+    cp -R research/players /usr/local/srs/objs/nginx/html/ && \
+    cp -R 3rdparty/signaling/www/demos /usr/local/srs/objs/nginx/html/
 
 ############################################################
 # dist