diff --git a/frontend/dbg.lua b/frontend/dbg.lua
index 84ec9f970..d06d2d5c0 100644
--- a/frontend/dbg.lua
+++ b/frontend/dbg.lua
@@ -21,6 +21,7 @@ local function LvDEBUG(lv, ...)
         android.LOGI("#"..line)
     else
         print("#"..line)
+        io.flush()
     end
 end