diff --git a/modules/services/matrix/default.nix b/modules/services/matrix/default.nix
index c73afed..c5889ed 100644
--- a/modules/services/matrix/default.nix
+++ b/modules/services/matrix/default.nix
@@ -207,5 +207,9 @@ in
         config.services.matrix-synapse.dataDir
       ];
     };
+
+    my.system.persist.directories = [
+      config.services.matrix-synapse.dataDir
+    ];
   };
 }