diff --git a/cmd/osbuild-worker/jobimpl-ostree-resolve.go b/cmd/osbuild-worker/jobimpl-ostree-resolve.go
index b77575917..e5c831167 100644
--- a/cmd/osbuild-worker/jobimpl-ostree-resolve.go
+++ b/cmd/osbuild-worker/jobimpl-ostree-resolve.go
@@ -19,19 +19,19 @@ func setError(err error, result *worker.OSTreeResolveJobResult) {
 		result.JobError = clienterrors.WorkerClientError(
 			clienterrors.ErrorOSTreeRefInvalid,
 			"Invalid OSTree ref",
-			err,
+			err.Error(),
 		)
 	case ostree.ResolveRefError:
 		result.JobError = clienterrors.WorkerClientError(
 			clienterrors.ErrorOSTreeRefResolution,
 			"Error resolving OSTree ref",
-			err,
+			err.Error(),
 		)
 	default:
 		result.JobError = clienterrors.WorkerClientError(
 			clienterrors.ErrorOSTreeParamsInvalid,
 			"Invalid OSTree parameters or parameter combination",
-			err,
+			err.Error(),
 		)
 	}
 }