--- /dev/null
+diff -u -r ../ruby-2.1.2/ext/pty/pty.c ./ext/pty/pty.c
+--- ../ruby-2.1.2/ext/pty/pty.c 2014-02-10 12:45:14.000000000 +0100
++++ ./ext/pty/pty.c 2014-06-27 02:17:31.936710571 +0200
+@@ -174,7 +174,7 @@
+ if (pwent && pwent->pw_shell)
+ shellname = pwent->pw_shell;
+ else
+- shellname = "/bin/sh";
++ shellname = "/system/bin/sh";
+ }
+ v = rb_str_new2(shellname);
+ argc = 1;