diff --git a/src/agents/bash-tools.exec.ts b/src/agents/bash-tools.exec.ts
index b9de81872..5c5c586a9 100644
--- a/src/agents/bash-tools.exec.ts
+++ b/src/agents/bash-tools.exec.ts
@@ -372,6 +372,7 @@ async function runExecProcess(opts: {
           workdir: opts.containerWorkdir ?? opts.sandbox.containerWorkdir,
           env: opts.env,
           tty: opts.usePty,
+          shellCommand: opts.sandbox.shellCommand,
         }),
       ],
       options: {