diff --git a/modules/services/matrix/default.nix b/modules/services/matrix/default.nix
index af26a83..b7a114c 100644
--- a/modules/services/matrix/default.nix
+++ b/modules/services/matrix/default.nix
@@ -206,5 +206,9 @@ in
         config.services.matrix-synapse.dataDir
       ];
     };
+
+    my.system.persist.directories = [
+      config.services.matrix-synapse.dataDir
+    ];
   };
 }