diff --git a/runtime/hsa-runtime/core/util/flag.h b/runtime/hsa-runtime/core/util/flag.h
index 6a6d7bd483..e4ed38c615 100644
--- a/runtime/hsa-runtime/core/util/flag.h
+++ b/runtime/hsa-runtime/core/util/flag.h
@@ -70,7 +70,7 @@ class Flag {
   const size_t DEFAULT_SCRATCH_SINGLE_LIMIT_ASYNC_PER_XCC = (3 * (1UL<<30));  // 3 GB
   const size_t DEFAULT_PCS_MAX_DEVICE_BUFFER_SIZE = (256 * (1UL<<20)); //256 MB
 
-  explicit Flag() { Refresh(); }
+  Flag() {}
 
   virtual ~Flag() {}