diff --git a/Misc/NEWS.d/next/Library/2020-05-05-08-12-51.bpo-40559.112wwa.rst b/Misc/NEWS.d/next/Library/2020-05-05-08-12-51.bpo-40559.112wwa.rst
new file mode 100644
index 00000000000000..15846351f25bbe
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-05-05-08-12-51.bpo-40559.112wwa.rst
@@ -0,0 +1 @@
+Fix possible memory leak in the C implementation of :class:`asyncio.Task`.
\ No newline at end of file
diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 5ba2bc49757098..8e1cd4f52a540a 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -2626,6 +2626,10 @@ task_step_impl(TaskObj *task, PyObject *exc)
coro = task->task_coro;
if (coro == NULL) {
PyErr_SetString(PyExc_RuntimeError, "uninitialized Task object");
+ if (clear_exc) {
+ /* We created 'exc' during this call */
+ Py_DECREF(exc);
+ }
return NULL;
}
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