diff --git a/src/lib/Hydra/Helper/Nix.pm b/src/lib/Hydra/Helper/Nix.pm
index f9dc69e6..93dc3bf7 100644
--- a/src/lib/Hydra/Helper/Nix.pm
+++ b/src/lib/Hydra/Helper/Nix.pm
@@ -284,6 +284,7 @@ sub findLog {
         });
 
     foreach my $step (@steps) {
+        next unless defined $step->drvpath;
         my $logPath = getDrvLogPath($step->drvpath);
         return $logPath if defined $logPath;
     }