diff --git a/charts/pihole/templates/oauth2-proxy-config.yaml b/charts/pihole/templates/oauth2-proxy-config.yaml
index 69a6448..04c6400 100644
--- a/charts/pihole/templates/oauth2-proxy-config.yaml
+++ b/charts/pihole/templates/oauth2-proxy-config.yaml
@@ -38,7 +38,7 @@
 
     cookie_name = "_oauth2_proxy_pihole"
     cookie_secret = "{{ .Values.oauth2.cookieSecret }}"
-    cookie_domains = "pihole.p.{{ .Values.domain }}"
+    cookie_domains = "{{ .Values.domain }}"
     cookie_expire = "168h"
     cookie_refresh = "100h"
     cookie_secure = true