diff --git a/configuration.nix b/configuration.nix
index 93f3eb0..cdf032e 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -68,14 +68,16 @@
     allowReboot = true;
   };
 
-  # Run Nix garbage collector
+  # Run Nix garbage collector, while avoiding recompilation
   nix = {
+    autoOptimiseStore = true;
     gc = {
       automatic = true;
       options = "--delete-older-than 14d";
     };
     extraOptions = ''
       keep-outputs = true
+      keep-derivations = true
       gc-keep-outputs = true
     '';
   };