diff --git a/.travis.yml b/.travis.yml
index 2dde430f..a640462a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@ matrix:
         - php: 7
         - php: hhvm-nightly
 
-script: ./tests/run.sh -s ./tests/cases
+script: ./tests/run.sh -s $NTESTER_FLAGS ./tests/cases
 
 after_failure:
     # Print *.actual content & log content
@@ -28,6 +28,9 @@ before_script:
     - cp ./tests/config.sample.neon ./tests/config.neon
     - cp ./tests/php-unix.ini ./tests/php.ini
 
+    - if [ "$TRAVIS_PHP_VERSION" == "5.6" ]; then cat ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini >> ./tests/php.ini; fi
+    - if [ "$TRAVIS_PHP_VERSION" == "5.6" ]; then NTESTER_FLAGS="--coverage ./coverage.xml --coverage-src ./src"; else TESTER_FLAGS=""; fi
+
     - if [ "$TRAVIS_PHP_VERSION" == "hhvm" -o "$TRAVIS_PHP_VERSION" == "hhvm-nightly" ]; then cp ./tests/sections.hhvm.ini ./tests/sections.ini; fi
     - if ! [ "$TRAVIS_PHP_VERSION" == "hhvm" -o "$TRAVIS_PHP_VERSION" == "hhvm-nightly" ]; then cp ./tests/sections.sample.ini ./tests/sections.ini; fi
 
@@ -36,3 +39,7 @@ before_script:
     - mysql -e 'CREATE DATABASE nextras_orm_test;'
 
     - mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql
+
+after_script:
+    - if [ "$TRAVIS_PHP_VERSION" == "5.6" ]; then composer require satooshi/php-coveralls; fi
+    - if [ "$TRAVIS_PHP_VERSION" == "5.6" ]; then php vendor/bin/coveralls -c tests/.coveralls.yml -v; fi
diff --git a/README.md b/README.md
index 0f4bea39..05b021cf 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ Nextras\Orm
 [![Build Status](https://travis-ci.org/nextras/orm.svg?branch=master)](https://travis-ci.org/nextras/orm)
 [![Downloads this Month](https://img.shields.io/packagist/dm/nextras/orm.svg?style=flat)](https://packagist.org/packages/nextras/orm)
 [![Stable version](http://img.shields.io/packagist/v/nextras/orm.svg?style=flat)](https://packagist.org/packages/nextras/orm)
+[![Code coverage](https://img.shields.io/coveralls/nextras/orm.svg?style=flat)](https://coveralls.io/r/nextras/orm)
 [![HHVM Status](http://img.shields.io/hhvm/nextras/orm.svg?style=flat)](http://hhvm.h4cc.de/package/nextras/orm)
 
 ### Installation
diff --git a/composer.json b/composer.json
index 353517a2..ab3d2021 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
 	"require-dev": {
 		"tracy/tracy":      "~2.3",
 		"nette/bootstrap":  "~2.3",
-		"nette/tester":     "~1.3",
+		"nette/tester":     "~1.4",
 		"mockery/mockery":  "~0.9"
 	},
 	"autoload": {
diff --git a/tests/.coveralls.yml b/tests/.coveralls.yml
new file mode 100644
index 00000000..25f8e345
--- /dev/null
+++ b/tests/.coveralls.yml
@@ -0,0 +1,5 @@
+# for php-coveralls
+service_name: travis-ci
+src_dir: src
+coverage_clover: coverage.xml
+json_path: coverage.json