diff --git a/build.sh b/build.sh
index 9147355..8136de2 100755
--- a/build.sh
+++ b/build.sh
@@ -43,6 +43,11 @@ cd Vocabulary
 tar -xf *.tar.xz
 cd ..
 
+cd hf-net
+tar -xf *.tar.xz
+cd ..
+
+
 echo "Configuring and building DXSLAM ..."
 
 mkdir -p build