diff --git a/speechx/speechx/recognizer/u2_recognizer_main.cc b/speechx/speechx/recognizer/u2_recognizer_main.cc
index 613302597aa546b1537268221a0de45d70c03758..5cb8dbb15e197b77aa6e34c685f537a5f1598183 100644
--- a/speechx/speechx/recognizer/u2_recognizer_main.cc
+++ b/speechx/speechx/recognizer/u2_recognizer_main.cc
@@ -107,7 +107,7 @@ int main(int argc, char* argv[]) {
         }
 
         LOG(INFO) << utt << " " << result;
-        LOG(INFO) << " RTF: " << dur / local_timer.Elapsed() << " dur: " << dur
+        LOG(INFO) << " RTF: " << local_timer.Elapsed() / dur << " dur: " << dur
                   << " cost: " << local_timer.Elapsed();
 
         result_writer.Write(utt, result);