diff --git a/Linux-usage-instructions.md b/Linux-usage-instructions.md
index 02b3cc6..bf6ffc1 100644
--- a/Linux-usage-instructions.md
+++ b/Linux-usage-instructions.md
@@ -13,10 +13,10 @@ Open Terminal and type
 
 ### Ubuntu 18
 
-    $ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF`
-    $ echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list`
-    $ sudo apt update`
-    $ sudo apt install mono-devel`
+    $ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+    $ echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
+    $ sudo apt update
+    $ sudo apt install mono-devel
 
 
 [**Other versions**](https://www.mono-project.com/download/stable)