diff --git a/sys/dev/nvme/nvme.h b/sys/dev/nvme/nvme.h
index cf49a443dafa..5c0f6241ac4a 100644
--- a/sys/dev/nvme/nvme.h
+++ b/sys/dev/nvme/nvme.h
@@ -1196,6 +1196,8 @@ void	nvme_le128toh(void *p)
 		tmp[i] = tmp[15-i];
 		tmp[15-i] = b;
 	}
+#else
+	(void)p;
 #endif
 }