diff --git a/Makefile.am b/Makefile.am
index 757192f..bfeea79 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -239,7 +239,7 @@
 # Install HTML files
 pkgdocdir = $(DOCUMENTATION_PATH)
 DOCDIRSDOXYGEN = www/api/MagickCore www/api/MagickWand
-DOCDIRSMANUAL = images images/patterns www www/api www/source www/Magick++
+DOCDIRSMANUAL = images images/patterns www www/css www/js www/api www/source www/Magick++
 DOCDIRS= $(DOCDIRSMANUAL) $(DOCDIRSDOXYGEN)
 
 if INSTALL_DOC