diff --git a/src/NotesWriterSM.cpp b/src/NotesWriterSM.cpp
index cdd27c8657..af224d0a2b 100644
--- a/src/NotesWriterSM.cpp
+++ b/src/NotesWriterSM.cpp
@@ -214,8 +214,8 @@ static RString GetSMNotesTag( const Song &song, const Steps &in )
 	lines.push_back( ssprintf( "     %d:", in.GetMeter() ) );
 	
 	vector<RString> asRadarValues;
-	// SM files don't use fakes for radar data. Keep it that way.
-	int categories = NUM_RadarCategory - 1;
+	// OpenITG simfiles use 11 radar categories.
+	int categories = 11;
 	FOREACH_PlayerNumber( pn )
 	{
 		const RadarValues &rv = in.GetRadarValues( pn );