diff --git a/server/szurubooru/config.py b/server/szurubooru/config.py
index c0e4605a..c65113a1 100644
--- a/server/szurubooru/config.py
+++ b/server/szurubooru/config.py
@@ -51,7 +51,7 @@ def read_config() -> Dict:
         if os.path.exists('../config.yaml'):
             with open('../config.yaml') as handle:
                 ret = merge(ret, yaml.load(handle.read()))
-        if os.path.exists('/.dockerenv') and not os.getenv(CI, False):
+        if os.path.exists('/.dockerenv') and not os.getenv('CI', False):
             ret = merge(ret, docker_config())
         return ret