diff --git a/README.md b/README.md
index 6eb69dd..50be735 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,16 @@ This is a PHP extension that wraps the [telegram VoIP library](https://github.co
 
 Installation:
 
-Install the libopus headers (libopus-dev), binutils (binutils-dev), openssl headers (OpenSSL_1_0_1-stable) and the php-cpp headers.
+Install the libopus headers (libopus-dev), binutils (binutils-dev), openssl headers and the php-cpp headers.
 
-Then clone this repository recursively and run `make && sudo make install`
+```
+sudo apt-get install libopus-dev binutils-dev libssl-dev
+git clone https://github.com/CopernicaMarketingSoftware/PHP-CPP
+cd PHP-CPP
+make -j$(nproc)
+sudo make install
+```
+
+Then clone this repository recursively (`git clone --recursive https://github.com/danog/php-libtgvoip`) and run `make && sudo make install`