diff --git a/hlna-git/postinstall.sh b/hlna-git/postinstall.sh
index 2957f66..e01333a 100755
--- a/hlna-git/postinstall.sh
+++ b/hlna-git/postinstall.sh
@@ -1,14 +1,4 @@
 #!/usr/bin/env bash
-if test -f ~/.zshrc; then
-sed -i -f '$aalias hlna="hlna.py"' ~/.zshrc
-sed -i -f '$aalias hlna-bot="hlna-bot.py"' ~/.zshrc
-source ~/.zshrc
-elif test -f ~/.config/fish/config.fish; then
-sed -i -f '$alias hlna="hlna.py"' ~/.config/fish/config.fish
-sed -i -f '$alias hlna-bot="hlna-bot.py"' ~/.config/fish/config.fish
-source ~/.config/fish/config.fish
-else
-sed -i -f '$aalias hlna="hlna.py"' ~/.bashrc
-sed -i -f '$aalias hlna-bot="hlna-bot.py"' ~/.bashrc
-source ~/.bashrc
-fi
+sed -i -e '$aalias hlna="hlna.py"' ~/.bashrc
+sed -i -e '$aalias hlna-bot="hlna-bot.py"' ~/.bashrc
+source ~/.bashrc
\ No newline at end of file