diff --git a/src/pegrep.asd b/src/pegrep.asd
index 89ef9b4..310b12c 100644
--- a/src/pegrep.asd
+++ b/src/pegrep.asd
@@ -18,6 +18,15 @@
                                 (speed 3)))
                     (funcall next)))
 
+(def-pegrep :pegrep/faf
+  :build-pathname "../build/pegrep-faf"
+  :around-compile (lambda (next)
+                    (proclaim '(optimize
+                                (safety 0)
+                                (debug 0)
+                                (speed 3)))
+                    (funcall next)))
+
 (def-pegrep :pegrep/debug
   :build-pathname "../build/pegrep-debug"
   :around-compile (lambda (next)