diff --git a/ext/wpe/WPEThreadedView.cpp b/ext/wpe/WPEThreadedView.cpp
index f7e621efc8..af7fc7aa7b 100644
--- a/ext/wpe/WPEThreadedView.cpp
+++ b/ext/wpe/WPEThreadedView.cpp
@@ -17,12 +17,20 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include "WPEThreadedView.h"
 
+#include <gst/gl/gl.h>
+#include <gst/gl/egl/gsteglimage.h>
+#include <gst/gl/egl/gstgldisplay_egl.h>
+
 #include <cstdio>
 #include <mutex>
 
-#define GST_CAT_DEFAULT wpe_src_debug
+GST_DEBUG_CATEGORY_EXTERN (wpe_src_debug);
 
 // -70 is the GLib priority we use internally in WebKit, for WPE.
 #define WPE_GLIB_SOURCE_PRIORITY -70
diff --git a/ext/wpe/WPEThreadedView.h b/ext/wpe/WPEThreadedView.h
index e61237563a..5b2c389438 100644
--- a/ext/wpe/WPEThreadedView.h
+++ b/ext/wpe/WPEThreadedView.h
@@ -21,16 +21,15 @@
 
 #include <EGL/egl.h>
 #include <glib.h>
-#include <gst/gl/gl.h>
 #include <gst/gl/gstglfuncs.h>
-#include <gst/gl/egl/gsteglimage.h>
-#include <gst/gl/egl/gstgldisplay_egl.h>
 #include <wpe/fdo.h>
 #include <wpe/fdo-egl.h>
 #include <wpe/webkit.h>
 #include "gstwpesrc.h"
 
-GST_DEBUG_CATEGORY_EXTERN(wpe_src_debug);
+typedef struct _GstGLContext GstGLContext;
+typedef struct _GstGLDisplay GstGLDisplay;
+typedef struct _GstEGLImage GstEGLImage;
 
 class WPEThreadedView {
 public:
diff --git a/ext/wpe/gstwpesrc.cpp b/ext/wpe/gstwpesrc.cpp
index ed1e56631d..8eb635cdfe 100644
--- a/ext/wpe/gstwpesrc.cpp
+++ b/ext/wpe/gstwpesrc.cpp
@@ -60,10 +60,10 @@
 #endif
 
 #include "gstwpesrc.h"
-#include <gst/video/video.h>
 #include <gst/gl/gl.h>
 #include <gst/gl/egl/gstglmemoryegl.h>
 #include <gst/gl/wayland/gstgldisplay_wayland.h>
+#include <gst/video/video.h>
 #include <xkbcommon/xkbcommon.h>
 
 #include "WPEThreadedView.h"