diff --git a/minuitwrp/minui.h b/minuitwrp/minui.h
index cf90532..f04f518 100644
--- a/minuitwrp/minui.h
+++ b/minuitwrp/minui.h
@@ -52,6 +52,8 @@
 int gr_get_surface(gr_surface* surface);
 int gr_free_surface(gr_surface surface);
 
+int gr_save_screenshot(const char *dest);
+
 // input event structure, include <linux/input.h> for the definition.
 // see http://www.mjmwired.net/kernel/Documentation/input/ for info.
 struct input_event;