diff --git a/Makefile.am b/Makefile.am
index 7004a18085..9a3b442f64 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -305,24 +305,23 @@ samples-conf:
 	done
 
 samples-htdocs: 
-	test -d $(DESTDIR)$(prefix)/htdocs || $(mkinstalldirs) $(DESTDIR)$(prefix)/htdocs
+	test -d $(DESTDIR)@htdocsdir@/ || $(mkinstalldirs) $(DESTDIR)@htdocsdir@
 	for htdocsfile in `find htdocs -name \* | grep -v .svn` ; do \
 		dir=`echo $$htdocsfile | sed -e 's|/[^/]*$$||'`; \
 		filename=`echo $$htdocsfile | sed -e 's|^.*/||'`; \
-		test -d $(DESTDIR)$(PREFIX)/$$dir || $(mkinstalldirs) $(DESTDIR)$(prefix)/$$dir ; \
-		test -f $(DESTDIR)$(PREFIX)/$$dir/$$filename || $(INSTALL) -m 644 $$dir/$$filename $(DESTDIR)$(PREFIX)/$$dir 2>/dev/null;  \
+		test -d $(DESTDIR)@htdocsdir@/$$dir || $(mkinstalldirs) $(DESTDIR)@htdocsdir@/$$dir ; \
+		test -f $(DESTDIR)@htdocsdir@/$$dir/$$filename || $(INSTALL) -m 644 $$dir/$$filename $(DESTDIR)@htdocsdir@/$$dir 2>/dev/null;  \
 	done
 
 samples: samples-conf samples-htdocs
 
 install-data-local:
 	@echo Installing $(NAME)
-	@for x in @modulesdir@ @runtimedir@ @dbdir@ @logfiledir@ @logfiledir@/xml_cdr @bindir@ @scriptdir@ @recordingsdir@ ; do \
+	@for x in @modulesdir@ @runtimedir@ @dbdir@ @logfiledir@ @logfiledir@/xml_cdr @bindir@ @scriptdir@ @recordingsdir@ @grammardir@; do \
 		$(mkinstalldirs) $(DESTDIR)$$x ; \
 	 done
-	$(mkinstalldirs) $(DESTDIR)$(prefix)/grammar
 	test -d $(DESTDIR)@confdir@ || $(MAKE) samples-conf
-	test -d $(DESTDIR)$(prefix)/htdocs || $(MAKE) samples-htdocs
+	test -d $(DESTDIR)@htdocsdir@ || $(MAKE) samples-htdocs
 
 src/include/switch_version.h: $(switch_builddir)/src/include/switch_version.h.in .version $(libfreeswitch_la_SOURCES) $(library_include_HEADERS)
 	@have_version=1 ; \
diff --git a/build/modmake.rules.in b/build/modmake.rules.in
index c4b6dc82e0..3aaa4d95f6 100644
--- a/build/modmake.rules.in
+++ b/build/modmake.rules.in
@@ -17,6 +17,7 @@ runtimedir=@runtimedir@
 logfiledir=@logfiledir@
 sysconfdir=@sysconfdir@
 localstatedir=@localstatedir@
+garmmardir=@grammardir@
 
 CC=@CC@
 CXX=@CXX@
diff --git a/configure.in b/configure.in
index b4e60ff356..5db3b82b90 100644
--- a/configure.in
+++ b/configure.in
@@ -52,6 +52,14 @@ dbdir="${prefix}/db"
 AC_SUBST(dbdir)
 AC_DEFINE_UNQUOTED([SWITCH_DB_DIR],"${dbdir}",[where to put db files])
 
+htdocsdir="${prefix}/htdocs"
+AC_SUBST(htdocsdir)
+AC_DEFINE_UNQUOTED([SWITCH_HTDOCS_DIR],"${htdocsdir}",[where to put htdocs files])
+
+grammardir="${prefix}/grammar"
+AC_SUBST(grammardir)
+AC_DEFINE_UNQUOTED([SWITCH_GRAMMAR_DIR],"${grammardir}",[where to put grammar files])
+
 scriptdir="${prefix}/scripts"
 AC_SUBST(scriptdir)
 AC_DEFINE_UNQUOTED([SWITCH_SCRIPT_DIR],"${scriptdir}",[where to put script files])
diff --git a/src/mod/asr_tts/mod_pocketsphinx/Makefile b/src/mod/asr_tts/mod_pocketsphinx/Makefile
index c66469eb2c..28564003bf 100644
--- a/src/mod/asr_tts/mod_pocketsphinx/Makefile
+++ b/src/mod/asr_tts/mod_pocketsphinx/Makefile
@@ -43,19 +43,19 @@ $(POCKETSPHINX_LA): $(POCKETSPHINX_BUILDDIR)/Makefile
 	cd $(POCKETSPHINX_BUILDDIR) && $(MAKE)
 	$(TOUCH_TARGET)
 
-$(DESTDIR)$(PREFIX)/grammar/model:
-	mkdir -p $(DESTDIR)$(PREFIX)/grammar/model
+$(DESTDIR)$(grammardir)/model:
+	mkdir -p $(DESTDIR)$(grammardir)/model
 
-$(DESTDIR)$(PREFIX)/grammar/model/communicator:
+$(DESTDIR)$(grammardir)/model/communicator:
 	$(GETLIB) $(SPHINXMODEL).tar.gz
-	mkdir -p $(DESTDIR)$(PREFIX)/grammar/model/communicator
-	cp -rp $(switch_srcdir)/libs/Communicator_semi_40.cd_semi_6000/* $(DESTDIR)$(PREFIX)/grammar/model/communicator
+	mkdir -p $(DESTDIR)$(grammardir)/model/communicator
+	cp -rp $(switch_srcdir)/libs/Communicator_semi_40.cd_semi_6000/* $(DESTDIR)$(grammardir)/model/communicator
 
-$(DESTDIR)$(PREFIX)/grammar/model/wsj1:
-	mkdir -p $(DESTDIR)$(PREFIX)/grammar/model/wsj1
-	cp -rp $(POCKETSPHINX_DIR)/model/hmm/wsj1/* $(DESTDIR)$(PREFIX)/grammar/model/wsj1
+$(DESTDIR)$(grammardir)/model/wsj1:
+	mkdir -p $(DESTDIR)$(grammardir)/model/wsj1
+	cp -rp $(POCKETSPHINX_DIR)/model/hmm/wsj1/* $(DESTDIR)$(grammardir)/model/wsj1
 
 dictionary:
-	@cp -f $(POCKETSPHINX_DIR)/model/lm/cmudict.0.6d $(DESTDIR)$(PREFIX)/grammar/default.dic
+	@cp -f $(POCKETSPHINX_DIR)/model/lm/cmudict.0.6d $(DESTDIR)$(grammardir)/default.dic
 
-local_install: $(DESTDIR)$(PREFIX)/grammar/model $(DESTDIR)$(PREFIX)/grammar/model/communicator $(DESTDIR)$(PREFIX)/grammar/model/wsj1 dictionary
+local_install: $(DESTDIR)$(grammardir)/model $(DESTDIR)$(grammardir)/model/communicator $(DESTDIR)$(grammardir)/model/wsj1 dictionary