diff --git a/ansible/roles/schulcloud-server-core/templates/ingress.yml.j2 b/ansible/roles/schulcloud-server-core/templates/ingress.yml.j2
index 485889dca1a..26589ed2482 100644
--- a/ansible/roles/schulcloud-server-core/templates/ingress.yml.j2
+++ b/ansible/roles/schulcloud-server-core/templates/ingress.yml.j2
@@ -14,7 +14,10 @@ metadata:
     nginx.ingress.kubernetes.io/http2-max-header-size: 96k
     nginx.ingress.kubernetes.io/large-client-header-buffers: 4 100k
     nginx.ingress.kubernetes.io/proxy-buffer-size: 96k
-    nginx.ingress.kubernetes.io/server-snippet: gzip on;
+    nginx.ingress.kubernetes.io/server-snippet: |
+      gzip on;
+      gzip_types text/plain application/json;
+
 {% if CLUSTER_ISSUER is defined %}
     cert-manager.io/cluster-issuer: {{ CLUSTER_ISSUER }}
 {% endif %}