diff --git a/src/xvectorbin/nnet3-xvector-scoring.cc b/src/xvectorbin/nnet3-xvector-scoring.cc
index 38a4a70c808..c10ff1e909c 100644
--- a/src/xvectorbin/nnet3-xvector-scoring.cc
+++ b/src/xvectorbin/nnet3-xvector-scoring.cc
@@ -27,7 +27,7 @@
 
 int main(int argc, char *argv[]) {
   using namespace kaldi;
-    using namespace kaldi::nnet3;
+  using namespace kaldi::nnet3;
   typedef kaldi::int32 int32;
   typedef kaldi::int64 int64;
   try {