diff --git a/desktop/browser.c b/desktop/browser.c
index b075bcb15..f7acec491 100644
--- a/desktop/browser.c
+++ b/desktop/browser.c
@@ -67,6 +67,7 @@
 #include "desktop/scrollbar.h"
 #include "desktop/selection.h"
 #include "desktop/plotters.h"
+#include "desktop/theme.h"
 #include "desktop/gui_misc.h"
 #include "desktop/gui_window.h"
 #include "desktop/gui_internal.h"
diff --git a/desktop/browser.h b/desktop/browser.h
index 8757474fb..c384c7f65 100644
--- a/desktop/browser.h
+++ b/desktop/browser.h
@@ -651,20 +651,6 @@ bool browser_window_is_frameset(struct browser_window *bw);
 nserror browser_window_get_scrollbar_type(struct browser_window *bw,
 		browser_scrolling *h, browser_scrolling *v);
 
-
-/**
- * Dump debug info concerning the browser window's contents to file
- *
- * \param  bw    The browser window
- * \param  f    The file to dump to
- */
-nserror browser_window_debug_dump(struct browser_window *bw, FILE *f, enum content_debug op);
-
-/* In platform specific theme_install.c. */
-#ifdef WITH_THEME_INSTALL
-void theme_install_start(struct hlcache_handle *c);
-#endif
-
 /**
  * Set the DPI of the browser.
  *
@@ -679,4 +665,12 @@ nserror browser_set_dpi(int dpi);
  */
 int browser_get_dpi(void);
 
+/**
+ * Dump debug info concerning the browser window's contents to file
+ *
+ * \param  bw    The browser window
+ * \param  f    The file to dump to
+ */
+nserror browser_window_debug_dump(struct browser_window *bw, FILE *f, enum content_debug op);
+
 #endif
diff --git a/desktop/theme.h b/desktop/theme.h
new file mode 100644
index 000000000..4eb19ba74
--- /dev/null
+++ b/desktop/theme.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2014 Vincent Sanders <vince@nesturf-browser.org>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * NetSurf is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file
+ * GUI Themeing interface.
+ */
+
+#ifndef _NETSURF_DESKTOP_THEME_H_
+#define _NETSURF_DESKTOP_THEME_H_
+
+/* In platform specific theme_install.c. */
+
+void theme_install_start(struct hlcache_handle *c);
+
+
+#endif
diff --git a/gtk/theme.c b/gtk/theme.c
index e7f292b88..d793626ae 100644
--- a/gtk/theme.c
+++ b/gtk/theme.c
@@ -29,6 +29,7 @@
 #include "utils/messages.h"
 #include "utils/utils.h"
 #include "desktop/browser.h"
+#include "desktop/theme.h"
 #include "content/content.h"
 #include "content/content_type.h"
 #include "content/hlcache.h"
diff --git a/riscos/theme_install.c b/riscos/theme_install.c
index f29596c88..c161943ba 100644
--- a/riscos/theme_install.c
+++ b/riscos/theme_install.c
@@ -32,6 +32,7 @@
 #include "content/content.h"
 #include "content/hlcache.h"
 #include "desktop/browser.h"
+#include "desktop/theme.h"
 
 #include "riscos/dialog.h"
 #include "riscos/gui.h"