Cryptographic quine variant Create a program that prints the MD5 sum of its source in the form:

MD5 sum of my source is: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx


No cheating - you can't just read the source file and compute its sum. The program must not read any external information.

Of course you can use a MD5 library available for your language.
Python 2, 91 bytes

s="import md5;print'MD5 sum of my source is: '+md5.new('s=%r;exec s'%s).hexdigest()";exec s


Using the Python quine variant which doesn't require repeating everything twice. Tested on ideone.