diff --git a/grub-core/script/execute.c b/grub-core/script/execute.c
index d859a13bd..72d199760 100644
--- a/grub-core/script/execute.c
+++ b/grub-core/script/execute.c
@@ -374,7 +374,7 @@ grub_script_arglist_to_argv (struct grub_script_arglist *arglist,
 
 	    case GRUB_SCRIPT_ARG_TYPE_DQSTR:
 	    case GRUB_SCRIPT_ARG_TYPE_SQSTR:
-	      if (grub_script_argv_append (&result, arg->str))
+	      if (append (arg->str, 1))
 		goto fail;
 	      break;
 	    }
diff --git a/tests/grub_cmd_echo.in b/tests/grub_cmd_echo.in
index 6ac33f55e..902696778 100644
--- a/tests/grub_cmd_echo.in
+++ b/tests/grub_cmd_echo.in
@@ -31,3 +31,11 @@ echo foo -n
 echo foo -n -e
 
 echo -------
+
+if test -n "$grubshell"; then insmod regexp; fi
+
+echo '*'
+echo "*"
+
+foo="*"
+echo "$foo"