warlock pre req question

[Ryabede]

I'm sure I'm just over looking this.
for invocations, do you have to be warlock 5 or just overall level 5 to take a invocation with prereq lvl 5?

[Tanarii]

Warlock level 5. This was actually part of the PHB errata:
https://media.wizards.com/2015/downloads/dnd/Errata_PH.pdf

"Eldritch Invocations (p. 110). A level prerequisite in an invocation refers to warlock level, not character level."