diff --git a/.github/workflows/scripts-testing.yml b/.github/workflows/scripts-testing.yml
index 15abb192..65b08b37 100644
--- a/.github/workflows/scripts-testing.yml
+++ b/.github/workflows/scripts-testing.yml
@@ -101,12 +101,15 @@ jobs:
                 *) ;;
               esac
             fi
-            _s_shell="$(basename "${3:?}")" || _s_shell="${3?}"
-            test "${_s_shell?}" != 'sh' || _s_shell="${2:?}" # Needed for bosh
+            if test "${2?}" = 'osh' || test "${2?}" = 'bosh'; then
+              _s_shell="${2?}"
+            else
+              _s_shell="$(basename "${3:?}")" || _s_shell="${3?}"
+            fi
             echo "_${_s_shell?}_"
             if test "${1:?}" = 'cmdline.sh'; then
               case "${_s_shell?}" in
-                dash | busybox | mksh | zsh | bosh | pbosh | yash | posh) return 0 ;; # Skip
+                sh | dash | busybox | mksh | zsh | bosh | pbosh | yash | posh) return 0 ;; # Skip
                 *) ;;
               esac
             fi