diff --git a/src/mame/gottlieb/gottlieb.cpp b/src/mame/gottlieb/gottlieb.cpp
index d321e446834..0555c120185 100644
--- a/src/mame/gottlieb/gottlieb.cpp
+++ b/src/mame/gottlieb/gottlieb.cpp
@@ -284,6 +284,7 @@ protected:
 	virtual void machine_start() override ATTR_COLD;
 	virtual void machine_reset() override ATTR_COLD;
 	virtual void video_start() override ATTR_COLD;
+	virtual void device_post_load() override { m_gfxdecode->gfx(0)->mark_all_dirty(); }
 
 private:
 	void analog_reset_w(u8 data);