diff --git a/.travis.yml b/.travis.yml
index 3cde6a4..6a944ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,3 +27,8 @@ install:
 
 script:
   - bin/phing ci-build
+
+after_success:
+  - wget https://github.com/satooshi/php-coveralls/releases/download/v1.0.0/coveralls.phar
+    && php coveralls.phar --verbose --config build/coveralls.yml
+    || true
diff --git a/build.xml b/build.xml
index 24d96e7..43d9c8a 100644
--- a/build.xml
+++ b/build.xml
@@ -16,6 +16,7 @@
 	<property name="path.root" value="${project.basedir}"/>
 	<property name="path.src" value="${path.root}/src"/>
 	<property name="path.tests" value="${path.root}/tests"/>
+	<property name="path.tests.coverage.clover" value="${path.build}/log/coverage/clover.xml"/>
 	<property name="path.vendor" value="${path.root}/vendor"/>
 
 	<target name="build" depends="
@@ -29,9 +30,24 @@
 		composer-validate,
 		phplint,
 		cs,
-		tests
+		ci-tests
 	"/>
 
+	<target name="ci-tests">
+		<exec
+			executable="${path.phpunit.executable}"
+			logoutput="true"
+			passthru="true"
+			checkreturn="true"
+		>
+			<arg value="--configuration"/>
+			<arg value="${path.phpunit.configuration}"/>
+			<arg value="--coverage-clover"/>
+			<arg value="${path.tests.coverage.clover}"/>
+			<arg path="${path.tests}"/>
+		</exec>
+	</target>
+
 	<target name="composer" depends="composer-validate">
 		<exec
 			executable="${path.composer.executable}"
diff --git a/build/coveralls.yml b/build/coveralls.yml
new file mode 100644
index 0000000..252b3f3
--- /dev/null
+++ b/build/coveralls.yml
@@ -0,0 +1,3 @@
+coverage_clover: build/log/coverage/clover.xml
+json_path: build/log/coverage/coveralls-upload.json
+service_name: travis-ci