diff --git a/configure.ac.in b/configure.ac.in
index e543ffad42c3569ba54cd016fb678cc1c3077e81..77ecc7a7041d31ada1f1d6eaa45aef9ea759d608 100644
--- a/configure.ac.in
+++ b/configure.ac.in
@@ -137,6 +137,11 @@ dnl *** Check for X11 ***
 dnl *********************
 XDT_CHECK_LIBX11_REQUIRE()
 
+dnl *************************
+dnl *** Check for gtk-doc ***
+dnl *************************
+GTK_DOC_CHECK([1.9])
+
 dnl ***********************************
 dnl *** Check for required packages ***
 dnl ***********************************
@@ -216,6 +221,9 @@ Makefile
 docs/Makefile
 docs/design/Makefile
 docs/papers/Makefile
+docs/reference/Makefile
+docs/reference/thunarx/Makefile
+docs/reference/thunarx/version.xml
 examples/Makefile
 examples/tex-open-terminal/Makefile
 icons/Makefile
diff --git a/docs/Makefile.am b/docs/Makefile.am
index 937b4d7653e936948a010c8fa130deecead687c7..e82f50388cf8b73956a6d68e133bac4510ef32b8 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -1,6 +1,7 @@
 SUBDIRS =								\
 	design								\
-	papers
+	papers								\
+	reference
 
 doc_DATA =								\
 	README.gtkrc
diff --git a/docs/reference/thunarx/Makefile.am b/docs/reference/thunarx/Makefile.am
index 662c7add1d6c4b68add548ee1dd180e4457cf0f7..3ffc3ad3c12732937c9077130d384a28336c4352 100644
--- a/docs/reference/thunarx/Makefile.am
+++ b/docs/reference/thunarx/Makefile.am
@@ -10,7 +10,7 @@ DOC_MAIN_SGML_FILE=$(DOC_MODULE)-docs.sgml
 SCAN_OPTIONS=--deprecated-guards="EXO_DISABLE_DEPRECATED"
 
 # Extra options to pass to gtkdoc-scangobj
-SCANGOBJ_OPTIONS=--type-init-func="gtk_type_init(0);g_type_class_ref(G_TYPE_OBJECT)"
+SCANGOBJ_OPTIONS=
 
 # The directory containing the source code. Relative to $(srcdir)
 DOC_SOURCE_DIR=../../../thunarx