diff --git a/.gitignore b/.gitignore
index 9607eec49..685a80d41 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ public/
 tests/coverage
 tests/storage
 .phpunit.result.cache
+.php_cs.cache
diff --git a/.php_cs.travis b/.php_cs.travis
new file mode 100644
index 000000000..76077adc7
--- /dev/null
+++ b/.php_cs.travis
@@ -0,0 +1,5 @@
+<?php
+
+return PhpCsFixer\Config::create()->setRules([
+    '@PSR1' => true,
+]);
diff --git a/.travis.yml b/.travis.yml
index 95067fbf9..bc2202e7f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ php:
   - 7.1
   - 7.2
   - 7.3
-  - 7.4snapshot
+  - 7.4
   - nightly
 
 #### PHP 7.4 && PHP 8
@@ -30,6 +30,7 @@ before_script:
   - travis_retry composer update ${COMPOSER_FLAGS} --no-interaction --prefer-dist
 
 script:
+  - vendor/bin/php-cs-fixer --dry-run --config=./.php_cs.travis fix src/ tests/  || travis_terminate 1;
   - vendor/bin/phpunit --coverage-text --coverage-clover=coverage.clover
 
 after_script: