diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 958fd78080bd..107bdb642f22 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -53,7 +53,8 @@ nvkm_vmm_pt_new(const struct nvkm_vmm_desc *desc, bool sparse,
 		}
 	}
 
-	if (!(pgt = kzalloc(sizeof(*pgt) + (sizeof(pgt->pte[0]) * lpte), GFP_KERNEL)))
+	pgt = kzalloc_flex(*pgt, pte, lpte);
+	if (!pgt)
 		return NULL;
 	pgt->page = page ? page->shift : 0;
 	pgt->sparse = sparse;