diff --git a/values.yaml b/values.yaml
index 9837af5..9f6b5b7 100644
--- a/values.yaml
+++ b/values.yaml
@@ -182,7 +182,7 @@ qwc:
             MAIL_SUPPRESS_SEND:
               value: 'True'
             IDLE_TIMEOUT:
-              value: "600"
+              value: '600'
             GROUP_REGISTRATION_ENABLED:
               value: 'False'
             DEFAULT_LOCALE: