diff --git a/src/python/ustreamer.c b/src/python/ustreamer.c
index e5796b9..da473dd 100644
--- a/src/python/ustreamer.c
+++ b/src/python/ustreamer.c
@@ -239,6 +239,7 @@ static PyObject *MemsinkObject_wait_frame(MemsinkObject *self, PyObject *Py_UNUS
 
 #	undef SET_VALUE
 
+	Py_INCREF(self->frame);
 	return self->frame;
 }