diff --git a/app/classes/steamcmd/steamcmd_command.py b/app/classes/steamcmd/steamcmd_command.py
index 9f76d119..d33fbd79 100644
--- a/app/classes/steamcmd/steamcmd_command.py
+++ b/app/classes/steamcmd/steamcmd_command.py
@@ -19,7 +19,7 @@ class SteamCMDcommand:
         :param install_dir: Directory to install to
         :return: Index command was added at
         """
-        self._commands.append(f"+force_install_dir {install_dir}")
+        self._commands.append(f'+force_install_dir "{install_dir}"')
         return len(self._commands) - 1
 
     def app_update(