diff --git a/Airspy-HF--and-Discovery-device-notes.md b/Airspy-HF--and-Discovery-device-notes.md
index 40ccead..98abc58 100644
--- a/Airspy-HF--and-Discovery-device-notes.md
+++ b/Airspy-HF--and-Discovery-device-notes.md
@@ -13,6 +13,7 @@ sudo apt-get install git libusb-1.0-0-dev cmake make gcc g++ pkg-config libsoapy
 git clone https://github.com/airspy/airspyhf.git
 cd airspyhf
 mkdir build
+cd build
 cmake ..
 make
 sudo make install
@@ -26,6 +27,7 @@ sudo ldconfig
 git clone https://github.com/pothosware/SoapyAirspyHF.git
 cd SoapyAirspyHF
 mkdir build
+cd build
 cmake ..
 make
 sudo make install