The Constitution of 1838, often called the Turkish constitution (Serbian: Турски устав / Turski ustav; because it was issued in the form of a sultan firman), was a constitution of the Principality of Serbia from 1838 until 1869. Through this, the Ottoman Empire wanted to show that Serbia was subservient to it. Although the new constitution was less liberal than the preceding Sretenje Constitution, Serbian prince Miloš Obrenović did not want to rule under it, so he abdicated in favor of his son Milan Obrenović.