diff --git a/gtk/src/gtk_wayland_helpers.cpp b/gtk/src/gtk_wayland_helpers.cpp
index aaba6923..e3655063 100644
--- a/gtk/src/gtk_wayland_helpers.cpp
+++ b/gtk/src/gtk_wayland_helpers.cpp
@@ -36,6 +36,7 @@ wlgl_helper::wlgl_helper ()
     subcompositor = NULL;
     parent        = NULL;
     child         = NULL;
+    region        = NULL;
     subsurface    = NULL;
     egl_display   = NULL;
     egl_surface   = NULL;