diff --git a/docs/html/README.txt b/docs/html/README.txt
index 8743925c96..f1d761a676 100644
--- a/docs/html/README.txt
+++ b/docs/html/README.txt
@@ -11,6 +11,7 @@ documentation.
 Build build_lcl_docs.lpi
 ../../lazbuild build_lcl_docs.lpi
 
+./build_lcl_docs --fpdoc /path/to/fpc/trunk/fpdoc --fpcdocs=../chm --outfmt chm
 
 For Windows:
 
diff --git a/docs/html/build_html.sh b/docs/html/build_html.sh
index df6f0c3b36..bd08285f01 100755
--- a/docs/html/build_html.sh
+++ b/docs/html/build_html.sh
@@ -5,6 +5,8 @@
 #
 # Before running this file, first compile the project build_lcl_docs.lpi
 #
-./build_lcl_docs --outfmt html
+# In order to link to RTL and FCL, place rtl.xct and fcl.xct in ../chm/
+#
+./build_lcl_docs --fpcdocs=../chm --outfmt html