diff --git a/src/scripts/unix.sh b/src/scripts/unix.sh
index f5a9855b..6abde86f 100644
--- a/src/scripts/unix.sh
+++ b/src/scripts/unix.sh
@@ -53,7 +53,7 @@ read_env() {
   [ "${debug:-${DEBUG:-false}}" = "true" ] && debug=debug && update=true || debug=release
   [ "${phpts:-${PHPTS:-nts}}" = "ts" ] && ts=zts && update=true || ts=nts
   fail_fast="${fail_fast:-${FAIL_FAST:-false}}"
-  [[ -z "${ImageOS}" && -z "${ImageVersion}" ]] && _runner=self-hosted || _runner=github
+  [[ -z "${ImageOS}" && -z "${ImageVersion}" || -n ${ACT} ]] && _runner=self-hosted || _runner=github
   runner="${runner:-${RUNNER:-$_runner}}"
 
   if [[ "$runner" = "github" && $_runner = "self-hosted" ]]; then