diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 7bb7942e9d21..d8a842621cda 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -3575,6 +3575,8 @@ static int pyrf__metrics_cb(const struct pmu_metric *pm,
 		Py_XDECREF(dict);
 		return -ENOMEM;
 	}
+	Py_DECREF(key);
+	Py_DECREF(value);
 
 	if (!add_to_dict(dict, "MetricName", pm->metric_name) ||
 	    !add_to_dict(dict, "PMU", pm->pmu) ||