diff --git a/stepmania/src/PrefsManager.cpp b/stepmania/src/PrefsManager.cpp
index 06d498d40f..49e227b384 100644
--- a/stepmania/src/PrefsManager.cpp
+++ b/stepmania/src/PrefsManager.cpp
@@ -83,6 +83,7 @@ PrefsManager::PrefsManager()
 	m_bAntiAliasing = false;
 	m_ShowSongOptions = YES;
 	m_bDancePointsForOni = false;
+	m_bPercentageScoring = false;
 	m_bTimestamping = false;
 	m_bShowLyrics = true;
 	m_bAutogenMissingTypes = true;
@@ -241,6 +242,7 @@ void PrefsManager::ReadGlobalPrefsFromDisk( bool bSwitchToLastPlayedGame )
 	ini.GetValue( "Options", "IgnoredMessageWindows",			m_sIgnoredMessageWindows );
 	ini.GetValue( "Options", "SoloSingle",						m_bSoloSingle );
 	ini.GetValue( "Options", "DancePointsForOni",				m_bDancePointsForOni );
+	ini.GetValue( "Options", "PercentageScoring",				m_bPercentageScoring );
 	ini.GetValue( "Options", "ShowLyrics",						m_bShowLyrics );
 	ini.GetValue( "Options", "AutogenMissingTypes",				m_bAutogenMissingTypes );
 	ini.GetValue( "Options", "AutogenGroupCourses",				m_bAutogenGroupCourses );
@@ -291,7 +293,7 @@ void PrefsManager::ReadGlobalPrefsFromDisk( bool bSwitchToLastPlayedGame )
 }
 
 
-void PrefsManager::SaveGlobalPrefsToDisk()
+void PrefsManager::SaveGlobalPrefsToDisk() const
 {
 	IniFile ini;
 	ini.SetPath( STEPMANIA_INI_PATH );
@@ -359,6 +361,7 @@ void PrefsManager::SaveGlobalPrefsToDisk()
 	ini.SetValue( "Options", "IgnoredMessageWindows",			m_sIgnoredMessageWindows );
 	ini.SetValue( "Options", "SoloSingle",						m_bSoloSingle );
 	ini.SetValue( "Options", "DancePointsForOni",				m_bDancePointsForOni );
+	ini.SetValue( "Options", "PercentageScoring",				m_bPercentageScoring );
 	ini.SetValue( "Options", "ShowLyrics",						m_bShowLyrics );
 	ini.SetValue( "Options", "AutogenMissingTypes",				m_bAutogenMissingTypes );
 	ini.SetValue( "Options", "AutogenGroupCourses",				m_bAutogenGroupCourses );
diff --git a/stepmania/src/PrefsManager.h b/stepmania/src/PrefsManager.h
index 381680e4f8..cdb4bba6a2 100644
--- a/stepmania/src/PrefsManager.h
+++ b/stepmania/src/PrefsManager.h
@@ -76,6 +76,7 @@ public:
 	Maybe			m_ShowSongOptions;
 	bool			m_bSoloSingle;
 	bool			m_bDancePointsForOni;	//DDR-Extreme style dance points instead of max2 percent
+	bool			m_bPercentageScoring;
 	bool			m_bTimestamping;
 	bool			m_bShowLyrics;
 	bool			m_bAutogenMissingTypes;
@@ -137,7 +138,7 @@ public:
 	CString			m_sDefaultModifiers;
 
 	void ReadGlobalPrefsFromDisk( bool bSwitchToLastPlayedGame );
-	void SaveGlobalPrefsToDisk();
+	void SaveGlobalPrefsToDisk() const;
 
 
 	void ReadGamePrefsFromDisk();