diff --git a/generic-pc/video_lib.h b/generic-pc/video_lib.h
index 97a3e23..7f93c7e 100644
--- a/generic-pc/video_lib.h
+++ b/generic-pc/video_lib.h
@@ -180,7 +180,7 @@ class cVideo : public OpenThreads::Thread
 		bool SetCECMode(VIDEO_HDMI_CEC_MODE) { return true; };
 		void SetCECAutoView(bool) { return; };
 		void SetCECAutoStandby(bool) { return; };
-		void ShowPicture(const char * fname, const char *);
+		void ShowPicture(const char * fname, const char * destname = NULL);
 		void StopPicture();
 		void Standby(unsigned int bOn);
 		void Pig(int x, int y, int w, int h, int osd_w = 1064, int osd_h = 600, int startx = 0, int starty = 0, int endx = 1279, int endy = 719);