diff --git a/.travis.yml b/.travis.yml
index ffd99b0..c511e1e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -60,11 +60,11 @@
   - echo "wayang.giraph.minWorkers = 1" >> travis/wayang.properties
   - echo "wayang.mapreduce.job.counters.limit = 200" >> travis/wayang.properties
   - cat travis/wayang.properties
-  - rm -rf /home/travis/build/apache/incubator-wayang/target/rat.txt || True
-  - rm -rf result.log || True
+  - rm -rf /home/travis/build/apache/incubator-wayang/target/rat.txt || echo "file doesn't exist"
+  - rm -rf result.log || echo "file doesn't exist"
   - mvn_opts=("-Dorg.slf4j.simpleLogger.defaultLogLevel=error" "-Dwayang.configuration=file://$(pwd)/travis/wayang.properties" "-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=error" "-Dlog4j.rootLogger=ERROR")
 script:
   #- jdk_switcher use openjdk8
   - bin/change-scala-version.sh 2.11.8 && mvn clean install -Pdistro "${mvn_opts[@]}" &> result.log
-  - cat /home/travis/build/apache/incubator-wayang/target/rat.txt || True
+  - cat /home/travis/build/apache/incubator-wayang/target/rat.txt || echo "file doesn't exist"
   - tail -n 2000 result.log