Different behavior: CCL w/SLIME

If I'm in SLIME and I enter (ql:quickload :cl-ppcre) in the REPL I get this error:

READ from #<INPUT STRING-INPUT-STREAM>: there is no package with name #1="QL" [Condition of type SYSTEM::SIMPLE-PACKAGE-ERROR]

However, if I enter the same in the CCL command line (no SLIME) I get this:

[mrice@sabal ~]$ ccl Welcome to Clozure Common Lisp Version 1.9-r15757 (LinuxX8664)! ? (ql:quickload :cl-ppcre) To load "cl-ppcre": Load 1 ASDF system: cl-ppcre ; Loading "cl-ppcre"

(:CL-PPCRE) ?

Why the difference?

I ran a regular expression example from the CCL command line and PPCRE seems to be working OK.

What must I do to use Quicklisp from the SLIME REPL?

Michael