diff --git a/nixos/modules/misc/locate.nix b/nixos/modules/misc/locate.nix
index 2f2986c2fec5..5561b5e126c0 100644
--- a/nixos/modules/misc/locate.nix
+++ b/nixos/modules/misc/locate.nix
@@ -149,7 +149,7 @@ in {
 
     prunePaths = mkOption {
       type = listOf path;
-      default = ["/tmp" "/var/tmp" "/var/cache" "/var/lock" "/var/run" "/var/spool" "/nix/store"];
+      default = [ "/tmp" "/var/tmp" "/var/cache" "/var/lock" "/var/run" "/var/spool" "/nix/store" "/nix/var/log/nix" ];
       description = ''
         Which paths to exclude from indexing
       '';