diff --git a/.travis.yml b/.travis.yml
index 7e808076..40968cb3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ env:
 script:
   - ./gradlew build publish
 
+# publish coverage report to https://coveralls.io/r/ethereum/ethereumj
 after_success:
   - ./gradlew jacocoTestReport coveralls
 
diff --git a/ethereumj-core/build.gradle b/ethereumj-core/build.gradle
index 2aab503a..5b1f92ab 100644
--- a/ethereumj-core/build.gradle
+++ b/ethereumj-core/build.gradle
@@ -98,6 +98,13 @@ artifacts {
     archives javadocJar
 }
 
+jacocoTestReport {
+    reports {
+        xml.enabled = true
+        html.enabled = true
+    }
+}
+
 publishing {
     publications {
         mavenJava(MavenPublication) {