diff --git a/comfy_cli/cmdline.py b/comfy_cli/cmdline.py
index 3699ffe..5284752 100644
--- a/comfy_cli/cmdline.py
+++ b/comfy_cli/cmdline.py
@@ -325,7 +325,7 @@ def install(
         )
         raise typer.Exit(code=1)
 
-    if pr and version not in {None, "nightly"} or commit:
+    if pr and (version not in {None, "nightly"} or commit):
         rprint("--pr cannot be used with --version or --commit")
         raise typer.Exit(code=1)
 
diff --git a/tests/comfy_cli/command/github/test_pr.py b/tests/comfy_cli/command/github/test_pr.py
index 8f72d16..b9c308d 100644
--- a/tests/comfy_cli/command/github/test_pr.py
+++ b/tests/comfy_cli/command/github/test_pr.py
@@ -298,6 +298,20 @@ def test_pr_and_commit_conflict(self, runner):
 
         assert result.exit_code != 0
 
+    @patch("comfy_cli.command.install.execute")
+    @patch("comfy_cli.cmdline.check_comfy_repo", return_value=(False, None))
+    @patch("comfy_cli.cmdline.workspace_manager")
+    @patch("comfy_cli.tracking.prompt_tracking_consent")
+    def test_commit_without_pr_does_not_conflict(self, mock_track, mock_ws, mock_check, mock_execute, runner):
+        """Test that --commit alone does not trigger --pr conflict error (issue #335)"""
+        mock_ws.get_workspace_path.return_value = ("/tmp/test", None)
+        result = runner.invoke(
+            app, ["--skip-prompt", "install", "--version", "nightly", "--commit", "abc123", "--nvidia"]
+        )
+
+        assert "--pr cannot be used" not in result.stdout
+        assert mock_execute.called
+
 
 class TestPRInfoDataClass:
     """Test PRInfo data class"""