diff --git a/drivers/nvdimm/nd_perf.c b/drivers/nvdimm/nd_perf.c
index 433bbb68ae641..14881c4e03e6b 100644
--- a/drivers/nvdimm/nd_perf.c
+++ b/drivers/nvdimm/nd_perf.c
@@ -324,6 +324,7 @@ void unregister_nvdimm_pmu(struct nvdimm_pmu *nd_pmu)
 {
 	perf_pmu_unregister(&nd_pmu->pmu);
 	nvdimm_pmu_free_hotplug_memory(nd_pmu);
+	kfree(nd_pmu->pmu.attr_groups);
 	kfree(nd_pmu);
 }
 EXPORT_SYMBOL_GPL(unregister_nvdimm_pmu);