diff --git a/app/matrix/prod.jsonnet b/app/matrix/prod.jsonnet
index 7185c59..ac3e71f 100644
--- a/app/matrix/prod.jsonnet
+++ b/app/matrix/prod.jsonnet
@@ -42,6 +42,7 @@
             database: "synapse",
             username: "synapse",
             password: { secretKeyRef: { name: "synapse", key: "postgres_password" } },
+            storageClassName: cfg.storageClassName,
         },
     },
 
@@ -267,7 +268,7 @@
             image: "registry.k0.hswaw.net/informatic/matrix-appservice-irc:0.11.2",
             metadata: {},
             config: std.native("parseYaml")(importstr "appservice-irc.yaml")[0],
-            storageClassName: "waw-hdd-paranoid-2",
+            storageClassName: app.cfg.storageClassName,
         },
 
         config: kube.ConfigMap("appservice-irc-%s" % [name]) {