diff --git a/docs/_docs/installation/ubuntu.md b/docs/_docs/installation/ubuntu.md
index bf9311f9..907f5841 100644
--- a/docs/_docs/installation/ubuntu.md
+++ b/docs/_docs/installation/ubuntu.md
@@ -16,8 +16,8 @@ the gem installation path. Run them now:
 
 ```sh
 echo '# Install Ruby Gems to ~/gems' >> ~/.bashrc
-echo 'export GEM_HOME=$HOME/gems' >> ~/.bashrc
-echo 'export PATH=$HOME/gems/bin:$PATH' >> ~/.bashrc
+echo 'export GEM_HOME="$HOME/gems"' >> ~/.bashrc
+echo 'export PATH="$HOME/gems/bin:$PATH"' >> ~/.bashrc
 source ~/.bashrc
 ```