diff --git a/modules/libcom/src/error/errlog.c b/modules/libcom/src/error/errlog.c
index 7ed6a8bd7..0581b5be7 100644
--- a/modules/libcom/src/error/errlog.c
+++ b/modules/libcom/src/error/errlog.c
@@ -353,6 +353,7 @@ int eltc(int yesno)
     epicsMutexMustLock(pvt.msgQueueLock);
     pvt.toConsole = yesno;
     epicsMutexUnlock(pvt.msgQueueLock);
+    errlogFlush();
     return 0;
 }