diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ecf799..260c868 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [Unreleased]
 ### Added
  - Add desktop file associations for batch files and Internet shortcuts
+ - Add `--unattended/-q` option for running Winetricks GUI in unattended mode
 
 ### Changed
  - Ignore duplicate Steam apps and only list the most recently updated app
diff --git a/src/protontricks/cli/main.py b/src/protontricks/cli/main.py
index d1ac0e4..5e75b23 100755
--- a/src/protontricks/cli/main.py
+++ b/src/protontricks/cli/main.py
@@ -110,6 +110,13 @@ def main(args=None, steam_path=None, steam_root=None):
     parser.add_argument(
         "--gui", action="store_true",
         help="Launch the Protontricks GUI.")
+    parser.add_argument(
+        "-q", "--unattended", action="store_true",
+        help=(
+            "Run Winetricks in unattended mode when using --gui. "
+            "This suppresses the 64-bit Wine prefix warning."
+        )
+    )
 
     parser.add_argument("appid", type=int, nargs="?", default=None)
     parser.add_argument("winetricks_command", nargs=argparse.REMAINDER)
@@ -203,13 +210,17 @@ def run(self):
         cwd = \
             str(self.steam_app.install_path) if self.cli_args.cwd_app else None
 
+        command = [str(self.winetricks_path), "--gui"]
+        if self.cli_args.unattended:
+            command.append("-q")
+
         run_command(
             winetricks_path=self.winetricks_path,
             proton_app=self.proton_app,
             steam_app=self.steam_app,
             use_steam_runtime=self.use_steam_runtime,
             legacy_steam_runtime_path=self.legacy_steam_runtime_path,
-            command=[str(self.winetricks_path), "--gui"],
+            command=command,
             use_bwrap=self.use_bwrap,
             start_wineserver=self.start_background_wineserver,
             cwd=cwd
diff --git a/tests/cli/test_main.py b/tests/cli/test_main.py
index 02b52af..8d04630 100644
--- a/tests/cli/test_main.py
+++ b/tests/cli/test_main.py
@@ -741,9 +741,17 @@ def test_steam_installation_not_selected(self, cli, gui_provider):
 
 
 class TestCLIGUI:
+    @pytest.mark.parametrize(
+        "cli_args, expected_winetricks_args",
+        [
+            (["--gui"], ["--gui"]),
+            (["--gui", "-q"], ["--gui", "-q"]),
+            (["--gui", "--unattended"], ["--gui", "-q"])
+        ]
+    )
     def test_run_gui(
             self, cli, default_proton, steam_app_factory, gui_provider,
-            command_mock, home_dir):
+            command_mock, home_dir, cli_args, expected_winetricks_args):
         """
         Start the GUI and fake selecting a game
         """
@@ -753,13 +761,13 @@ def test_run_gui(
         # Fake the user selecting the game
         gui_provider.mock_stdout = "Fake game 1: 10"
 
-        cli(["--gui"])
+        cli(cli_args)
 
         command = command_mock.commands[-1]
         # 'winetricks --gui' was run for the game selected by user
         assert str(command.args[0]) == \
             str(home_dir / ".local" / "bin" / "winetricks")
-        assert command.args[1] == "--gui"
+        assert command.args[1:] == expected_winetricks_args
 
         # Correct environment vars were set
         assert command.env["WINE"] == str(