diff --git a/src/stratifier.c b/src/stratifier.c
index d905d081..1741950c 100644
--- a/src/stratifier.c
+++ b/src/stratifier.c
@@ -2516,19 +2516,19 @@ out:
 	}
 
 	if (!share) {
-		JSON_CPACK(val, "{sI,ss,ss,sI,ss,ss,so,si,ss,ss,ss,ss}",
-				"clientid", client->id,
-				"secondaryuserid", user_instance->secondaryuserid,
-				"enonce1", client->enonce1,
-				"workinfoid", current_workbase->id,
-				"workername", client->workername,
-				"username", user_instance->username,
-				"error", json_copy(*err_val),
-				"errn", err,
-				"createdate", cdfield,
-				"createby", "code",
-				"createcode", __func__,
-				"createinet", ckp->serverurl);
+		val = json_object();
+		json_set_int(val, "clientid", client->id);
+		json_set_string(val, "secondaryuserid", user_instance->secondaryuserid);
+		json_set_string(val, "enonce1", client->enonce1);
+		json_set_int(val, "workinfoid", current_workbase->id);
+		json_set_string(val, "workername", client->workername);
+		json_set_string(val, "username", user_instance->username);
+		json_object_set(val, "error", *err_val);
+		json_set_int(val, "errn", err);
+		json_set_string(val, "createdate", cdfield);
+		json_set_string(val, "createby", "code");
+		json_set_string(val, "createcode", __func__);
+		json_set_string(val, "createinet", ckp->serverurl);
 		ckdbq_add(ckp, ID_SHAREERR, val);
 		LOGINFO("Invalid share from client %ld: %s", client->id, client->workername);
 	}