--- Makefile~	2005-04-28 02:42:19.000000000 +0200
+++ Makefile	2012-03-23 02:50:53.342214487 +0100
@@ -5,7 +5,7 @@
 PACKS=pcre
 
 LIBINSTALL_FILES=$(wildcard *.mli *.cmi *.cma *.cmxa *.a *.so)
-OCAMLDOCFLAGS=-colorize-code
+OCAMLDOCFLAGS=-I +pcre -colorize-code
 
 all: debug-code-library
 opt: native-code-library