diff --git a/shared/hardware/impermanence.nix b/shared/hardware/impermanence.nix
index e6215fc..89023e4 100644
--- a/shared/hardware/impermanence.nix
+++ b/shared/hardware/impermanence.nix
@@ -26,6 +26,7 @@
       enable = true;
       flags = "-k -p --utc";
     };
+    trim.interval = "daily";
   };
 
   boot.initrd.postResumeCommands = lib.mkAfter ''