diff --git a/dotfiles/lib/shellrc/functions.sh b/dotfiles/lib/shellrc/functions.sh
index afc12828..d9ecbe87 100644
--- a/dotfiles/lib/shellrc/functions.sh
+++ b/dotfiles/lib/shellrc/functions.sh
@@ -166,3 +166,12 @@ function git_reset_author() {
     local filter_branch_command="$should_update_command"' && '"$update_command"' || test true'
     git filter-branch -f --env-filter $filter_branch_command -- --all
 }
+
+function set_osx_hostname() {
+    local new_hostname="$1"
+    test -z new_hostname && new_hostname="IvansMac"
+    sudo scutil --set ComputerName $new_hostname
+    sudo scutil --set HostName $new_hostname
+    sudo scutil --set LocalHostName $new_hostname
+    sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string $new_hostname
+}
diff --git a/resources/osx.sh b/resources/osx.sh
index 202baac9..2c5d6a8f 100755
--- a/resources/osx.sh
+++ b/resources/osx.sh
@@ -11,10 +11,7 @@ while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &
 ###############################################################################
 
 # Set computer name (as done via System Preferences → Sharing)
-sudo scutil --set ComputerName "IvansMac"
-sudo scutil --set HostName "IvanMalison"
-sudo scutil --set LocalHostName "IvanMalison"
-sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string "IvanMalison"
+set_osx_hostname
 
 # Menu bar: disable transparency
 defaults write NSGlobalDomain AppleEnableMenuBarTransparency -bool false