diff --git a/core/phpstan.neon.dist b/core/phpstan.neon.dist
index 868e63576c48622cf48c1faeeb9abbaa11b1100b..cfa46e60e4c3136e5b8bd8090f5a5825a02acf05 100644
--- a/core/phpstan.neon.dist
+++ b/core/phpstan.neon.dist
@@ -16,6 +16,7 @@ parameters:
     - ../*/settings*.php
     # Skip test fixtures.
     - */tests/fixtures/*.php
+    - */tests/fixtures/*.php.gz
     # Below extends on purpose a non existing class for testing.
     - modules/system/tests/modules/plugin_test/src/Plugin/plugin_test/fruit/ExtendingNonInstalledClass.php
     # @todo files below need to be excluded as they prevent baseline generation.