diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 3feb88f9b2..3f221ed06d 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit bootstrap="test/bootstrap-dist.php"
-         backupGlobals="false"
+         backupGlobals="true"
          backupStaticAttributes="false"
          strict="true"
          colors="true"
diff --git a/phpunit.xml.nocoverage b/phpunit.xml.nocoverage
index 6f1967a7e1..e58cb2ef5c 100644
--- a/phpunit.xml.nocoverage
+++ b/phpunit.xml.nocoverage
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit bootstrap="test/bootstrap-dist.php"
-         backupGlobals="false"
+         backupGlobals="true"
          backupStaticAttributes="false"
          strict="true"
          colors="true"