wayland: Handle hidden window as no shell surface
diff --git a/src/wl_platform.h b/src/wl_platform.h
index 100b12b..c538936 100644
--- a/src/wl_platform.h
+++ b/src/wl_platform.h
@@ -91,6 +91,8 @@
     _GLFWcursor*                currentCursor;
     double                      cursorPosX, cursorPosY;
 
+    char*                       title;
+
     // We need to track the monitors the window spans on to calculate the
     // optimal scaling factor.
     int                         scale;