diff --git a/GenericIO.h b/GenericIO.h
index 6e435ff8778f17bf5b7ee3b4680039e8f725cd32..9832f1fa8dc2a589ab48dbd432bddd75d1264833 100644
--- a/GenericIO.h
+++ b/GenericIO.h
@@ -463,8 +463,9 @@ public:
 
   static bool flushAll() {
 #ifdef GENERICIO_WITH_VELOC
-      return GenericFileIO_VELOC::flush();
+      return GenericFileIO_VELOC::flush();//With veloc do a blocking flush of anything outstanding and return if all outstanding tasks were successful
 #endif
+      return true;//by default return that flush was successful (as it does not do anything)
   }
 
   static void shutdown() {