1 files changed, 3 insertions, 0 deletions
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 05afe9e..540ee9d 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -9837,6 +9837,9 @@ os_unsetenv_impl(PyObject *module, PyObject *name)
      */
     if (PyDict_DelItem(posix_putenv_garbage, name)) {
         /* really not much we can do; just leak */
+        if (!PyErr_ExceptionMatches(PyExc_KeyError)) {
+            return NULL;
+        }
         PyErr_Clear();
     }
     Py_RETURN_NONE;