diff --git a/virtual_machines/README.md b/virtual_machines/README.md
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--- a/virtual_machines/README.md
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-* [One VM to Rule Them All](https://www.cs.purdue.edu/homes/gkrichar/papers/onward2013-wuerthinger-truffle.pdf)
+* [One VM to Rule Them All](http://lafo.ssw.uni-linz.ac.at/papers/2013_Onward_OneVMToRuleThemAll.pdf)
     - This is an exciting VM implementation that incorporates AST node rewriting and an optimizing compiler. It enables the implementation of, and excellent performance for, a wide range of languages.