diff --git a/mk/config.mk.in b/mk/config.mk.in
index 558bf4b9c4fc8876fdd8679f7c7537347de3a53c..fbea271f813c3fe9d956331ac22f13d7a8ecb07f 100644
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -641,12 +641,6 @@ SGML2RTF		= $(DOCBOOK_PREFIX)db2rtf
 
 SGMLSTYLESHEET          = $(FPTOOLS_TOP_ABS)/docs/fptools-both.dsl
 
-# This may need to be changed by the user for local conditions
-SGML_TOP		= /usr/lib/sgml
-
-SGML_CATALOG_FILES	= ./catalog:$(SGML_TOP)/catalog:$(SGML_TOP)/docbook.cat:$(SGML_TOP)/stylesheets/docbook/catalog
-
-
 SRC_SGML2DVI_OPTS       = -d $(SGMLSTYLESHEET)
 SRC_SGML2HTML_OPTS      = -d $(SGMLSTYLESHEET)
 SRC_SGML2PS_OPTS      	= -d $(SGMLSTYLESHEET)