diff --git a/libweston/backend-headless/headless.c b/libweston/backend-headless/headless.c
index 95b390a8..c98bdc24 100644
--- a/libweston/backend-headless/headless.c
+++ b/libweston/backend-headless/headless.c
@@ -40,6 +40,7 @@
 #include "linux-explicit-synchronization.h"
 #include "pixman-renderer.h"
 #include "renderer-gl/gl-renderer.h"
+#include "shared/weston-egl-ext.h"
 #include "linux-dmabuf.h"
 #include "presentation-time-server-protocol.h"
 #include <libweston/windowed-output-api.h>