diff --git a/INSTALL.md b/INSTALL.md
index 6d610d5..e22f5c7 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -28,8 +28,10 @@ vr  2 dec 2016 23:07:19 CET
 ```
     mkdir build && cd build
     cmake .. -DCASACORE_ROOT_DIR=/opt/soft/casacore/ -DENABLE_CUDA=OFF
+    make -j4
 ```
 
+
 - The sagecal executable can be found in
     **dist/bin** folder. All the libraries will be stored in **dist/lib** folder.