diff --git a/docs/reference/gdk/Makefile.am b/docs/reference/gdk/Makefile.am
index 3015baa9fa..0f7dab671c 100644
--- a/docs/reference/gdk/Makefile.am
+++ b/docs/reference/gdk/Makefile.am
@@ -45,8 +45,7 @@ INCLUDES = \
 	$(GTK_DEBUG_FLAGS)	\
 	$(GDK_DEP_CFLAGS)
 
-GTKDOC_LIBS = $(top_builddir)/gdk/$(gdktargetlib)
-
+GTKDOC_LIBS = $(top_builddir)/gdk/$(gdktargetlib) $(GDK_DEP_LIBS)
 
 # Extra options to supply to gtkdoc-mkdb
 MKDB_OPTIONS=--sgml-mode --output-format=xml --name-space=gdk
diff --git a/docs/reference/gtk/Makefile.am b/docs/reference/gtk/Makefile.am
index 94231fed3e..85bec08a32 100644
--- a/docs/reference/gtk/Makefile.am
+++ b/docs/reference/gtk/Makefile.am
@@ -108,7 +108,8 @@ CPPFLAGS += \
 
 GTKDOC_LIBS = \
 	$(top_builddir)/gdk/$(gdktargetlib)        			\
-	$(top_builddir)/gtk/$(gtktargetlib)
+	$(top_builddir)/gtk/$(gtktargetlib)				\
+	$(GTK_DEP_LIBS)
 
 
 # Extra options to supply to gtkdoc-mkdb