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Diffstat (limited to 'nixpkgs/nixos/modules/services/logging/logcheck.nix')
-rw-r--r--nixpkgs/nixos/modules/services/logging/logcheck.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/nixos/modules/services/logging/logcheck.nix b/nixpkgs/nixos/modules/services/logging/logcheck.nix
index 9c64160e92bc..f139190a1709 100644
--- a/nixpkgs/nixos/modules/services/logging/logcheck.nix
+++ b/nixpkgs/nixos/modules/services/logging/logcheck.nix
@@ -227,7 +227,7 @@ in
     '';
 
     services.cron.systemCronJobs =
-        let withTime = name: {timeArgs, ...}: ! (builtins.isNull timeArgs);
+        let withTime = name: {timeArgs, ...}: timeArgs != null;
             mkCron = name: {user, cmdline, timeArgs, ...}: ''
               ${timeArgs} ${user} ${cmdline}
             '';