diff --git a/apache2/Makefile b/apache2/Makefile
index c9dcd97e..801338a1 100644
--- a/apache2/Makefile
+++ b/apache2/Makefile
@@ -37,15 +37,16 @@ include ${top_builddir}/build/special.mk
 APXS      = apxs
 APACHECTL = apachectl
 
-INCLUDES = -I /usr/include/libxml2
-#INCLUDES = -I /usr/include/libxml2 -I /path/to/httpd-x.y/srclib/pcre
+INCLUDES = -I /usr/include/libxml2 -I /usr/include/lua5.1
+# INCLUDES = -I /usr/include/libxml2 -I /path/to/httpd-x.y/srclib/pcre
 DEFS = -DWITH_LIBXML2 -DWITH_LUA
 # DEFS = -DWITH_ICONV
-#DEFS = -DWITH_LIBXML2 -DPERFORMANCE_MEASUREMENT
-#DEFS = -DWITH_LIBXML2 -DNO_MODSEC_API
-#DEFS = -DWITH_LIBXML2 -DDEBUG_CONF
-#DEFS = -DWITH_LIBXML2 -DCACHE_DEBUG
-#LIBS = -Lmy/lib/dir -lmylib
+#
+# DEFS = -DWITH_LIBXML2 -DPERFORMANCE_MEASUREMENT
+# DEFS = -DWITH_LIBXML2 -DNO_MODSEC_API
+# DEFS = -DWITH_LIBXML2 -DDEBUG_CONF
+# DEFS = -DWITH_LIBXML2 -DCACHE_DEBUG
+# LIBS = -Lmy/lib/dir -lmylib
 
 CFLAGS = -O2 -g -Wuninitialized -Wall -Wmissing-prototypes -Wshadow -Wunused-variable -Wunused-value -Wchar-subscripts -Wsign-compare