diff --git a/conan/tools/microsoft/visual.py b/conan/tools/microsoft/visual.py
index 73a20b5ad53..8e71b9cdf03 100644
--- a/conan/tools/microsoft/visual.py
+++ b/conan/tools/microsoft/visual.py
@@ -167,8 +167,7 @@ def generate(self, scope="build"):
                 warn_tag="deprecated"
             )
         except ConanException:
-            is_ps1 = self._conanfile.conf.get("tools.env.virtualenv:powershell", check_type=str,
-                                              choices=["powershell", "pwsh"])
+            is_ps1 = self._conanfile.conf.get("tools.env.virtualenv:powershell", check_type=str)
         if is_ps1:
             content_ps1 = textwrap.dedent(rf"""
             if (-not $env:VSCMD_ARG_VCVARS_VER){{