diff --git a/development.sh b/development.sh
index 76c7a01..c2c825b 100644
--- a/development.sh
+++ b/development.sh
@@ -19,10 +19,10 @@ defaults write com.apple.Safari IncludeInternalDebugMenu 1
 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
 (echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/$(USERS)/.zprofile
 eval "$(/opt/homebrew/bin/brew shellenv)"
-echo "export HOMEBREW_NO_ANALYTICS=1" | sudo tee /etc/zshrc
+echo "export HOMEBREW_NO_ANALYTICS=1" | sudo tee -a /etc/zshrc
 export HOMEBREW_NO_ANALYTICS=1
 brew tap homebrew/autoupdate
 brew tap homebrew/cask-versions
 brew install --cask android-platform-tools chronycontrol github gpg-suite-no-mail microsoft-edge mullvadvpn orbstack powershell visual-studio-code
 brew install gnu-sed
-echo 'PATH="/opt/homebrew/opt/gnu-sed/libexec/gnubin:$PATH"' | sudo tee /etc/zshrc
+echo 'PATH="/opt/homebrew/opt/gnu-sed/libexec/gnubin:$PATH"' | sudo tee -a /etc/zshrc