diff --git a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/vulcan/data/VulcanHebe.kt b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/vulcan/data/VulcanHebe.kt
index 85736e1f..0d3abba3 100644
--- a/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/vulcan/data/VulcanHebe.kt
+++ b/app/src/main/java/pl/szczodrzynski/edziennik/data/api/edziennik/vulcan/data/VulcanHebe.kt
@@ -338,6 +338,9 @@ open class VulcanHebe(open val data: DataVulcan, open val lastSync: Long?) {
                         setTextBody(jsonString, MediaTypeUtils.APPLICATION_JSON)
                     }
                 }
+
+                if (allow404)
+                    allowErrorCode(HttpURLConnection.HTTP_NOT_FOUND)
             }
             .allowErrorCode(HttpURLConnection.HTTP_BAD_REQUEST)
             .allowErrorCode(HttpURLConnection.HTTP_FORBIDDEN)