diff --git a/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/history/ErosHistory.kt b/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/history/ErosHistory.kt
index e95f9d6357..6d331b1e4d 100644
--- a/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/history/ErosHistory.kt
+++ b/omnipod-eros/src/main/java/info/nightscout/androidaps/plugins/pump/omnipod/eros/history/ErosHistory.kt
@@ -23,7 +23,7 @@ class ErosHistory(private val dao: ErosHistoryRecordDao) {
     }
 
     fun create(historyRecord: ErosHistoryRecordEntity?): Long =
-        Single.just(dao.insert(historyRecord!!))
+        Single.fromCallable { dao.insert(historyRecord!!) }
             .subscribeOn(Schedulers.io())
             .blockingGet()
 }