diff --git a/packages/system/keycloak-configure/templates/configure-kk.yaml b/packages/system/keycloak-configure/templates/configure-kk.yaml
index 00673c03..c49a3889 100644
--- a/packages/system/keycloak-configure/templates/configure-kk.yaml
+++ b/packages/system/keycloak-configure/templates/configure-kk.yaml
@@ -223,6 +223,7 @@ data:
         clientSecret: {{ $kubeappsClient }}
         cookieSecret: {{ $cookieSecret }}
         extraFlags:
+          - --cookie-secure
           - --scope=openid email groups
           - --oidc-issuer-url=https://keycloak.{{ $host }}/realms/cozy