diff --git a/common/aixlog.hpp b/common/aixlog.hpp
index a2c105cc..e2d5fc95 100644
--- a/common/aixlog.hpp
+++ b/common/aixlog.hpp
@@ -771,6 +771,7 @@ protected:
             else
                 stream << result << " " << message << "\n";
         }
+         stream.flush();
     }
 
     std::string format_;