diff --git a/uppsrc/RasterPlayer/RasterPlayer.h b/uppsrc/RasterPlayer/RasterPlayer.h
index 3a6119a5a..7766f1547 100644
--- a/uppsrc/RasterPlayer/RasterPlayer.h
+++ b/uppsrc/RasterPlayer/RasterPlayer.h
@@ -36,7 +36,7 @@ public:
 	RasterPlayer& SetSpeed(double s = 1)	{speed = s; Refresh(); return *this;}
 	RasterPlayer& SetMT(bool _mt = false);
 	
-	Callback WhenShown;
+	Event<> WhenShown;
 	
 	int GetPageCount() 	{return images.GetCount();};
 	int GetFrameCount() {return images.GetCount();};	
diff --git a/uppsrc/RasterPlayer/src.tpp/RasterPlayer_en-us.tpp b/uppsrc/RasterPlayer/src.tpp/RasterPlayer_en-us.tpp
index 611bc09a8..c440e04e4 100644
--- a/uppsrc/RasterPlayer/src.tpp/RasterPlayer_en-us.tpp
+++ b/uppsrc/RasterPlayer/src.tpp/RasterPlayer_en-us.tpp
@@ -112,6 +112,6 @@ program.&]
 [s3; Sets the active page (frame).&]
 [s1; &]
 [s5;%- &]
-[s6;:RasterPlayer`:`:WhenShown:%- [_^Callback^ Callback]_[* WhenShown]&]
+[s6;:RasterPlayer`:`:WhenShown:%- [_^Callback^ Event<>]_[* WhenShown]&]
 [s3; Called when a new picture (page or frame) is shown.&]
 [s0; ]]
\ No newline at end of file