A method for automatically modifying a program of an automation system, wherein a first item of data related to a program component is determined using an identificator assigned to the automation system, wherein a program code object stored in a database is selected using a selector based upon the first item of data, and wherein the program is modified by means of the program code object in that the program code object is integrated into the program. Further, an automation system with a program having program components and which is automatically modifiable in accordance with the method, having an assigned identificator for determining a first item of data related to a program component, a selector for selecting a program code object stored in a database based upon the first item of data, and an integrator for integrating the program code object into the program and finally a computer readable medium.