diff --git a/src/wine/install.sh b/src/wine/install.sh
index b2789bd..731d20b 100644
--- a/src/wine/install.sh
+++ b/src/wine/install.sh
@@ -32,8 +32,9 @@ install_debian() {
   wget https://raw.githubusercontent.com/Winetricks/winetricks/master/src/winetricks -O /usr/bin/winetricks
   chmod +rx /usr/bin/winetricks
 
-  su -l $_REMOTE_USER -c "WINEPREFIX=\"$_REMOTE_USER_HOME\" wine wineboot --init"
+  su -l "$_REMOTE_USER" -c "WINEPREFIX=\"$_REMOTE_USER_HOME\" wine wineboot --init"
 
+  # Cleanup
   apt purge --auto-remove -y
   apt autoremove --purge -y
   rm -rf /var/lib/apt/lists/*