Update docs/get-details/dapps/smart-contracts/debugging.md
@@ -129,6 +129,8 @@ This file may be msgpack or json and can be created using goal or the SDKs
```sh
$ goal app call --app-id {appid} --from {ACCOUNT} --out=dryrun.json --dryrun-dump
+ # or if you already have a transaction file
+ $ goal clerk dryrun --dryrun-dump -t transaction.txn -o dryrun.json
```
