diff --git a/.travis.yml b/.travis.yml
index b9f5fb10..b39a6b5b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,13 +1,19 @@
 language: java
 sudo: false
-
 install: true
+
 script: ./travis.sh
 
+addons:
+  sonarqube:
+    token:
+      secure: "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"
+
 cache:
   apt: true
   directories:
     - ~/.m2
+    - '$HOME/.sonar/cache'
 
 addons:
   apt:
@@ -25,3 +31,7 @@ matrix:
     # package
     - jdk: oraclejdk8
       env: TEST=nondex
+
+    # sonar
+    - jdk: oraclejdk8
+      env: TEST=sonar
diff --git a/travis.sh b/travis.sh
index 22c0403b..56e45a44 100755
--- a/travis.sh
+++ b/travis.sh
@@ -8,6 +8,11 @@ ci)
   mvn clean verify -B -e -V
   ;;
 
+sonar)
+  if [[ $TRAVIS_PULL_REQUEST =~ ^([0-9]*)$ ]]; then exit 0; fi
+  mvn clean org.jacoco:jacoco-maven-plugin:prepare-agent package sonar:sonar
+  ;;
+
 nondex)
   cd checkstyle-sonar-plugin
   mvn --fail-never clean nondex:nondex -Dcheckstyle.skip=true