diff --git a/Source/Project64/N64 System/N64 Class.h b/Source/Project64/N64 System/N64 Class.h
index aacd5d114..5ea2d56fa 100644
--- a/Source/Project64/N64 System/N64 Class.h	
+++ b/Source/Project64/N64 System/N64 Class.h	
@@ -54,8 +54,8 @@ public:
 	void   StartEmulation   ( bool NewThread );
 	void   SyncToAudio      ( void );
 	bool   IsDialogMsg      ( MSG * msg );
-	void   IncreaseSpeed    ( void ) { m_Limitor.IncreaeSpeed(); }
-	void   DecreaeSpeed     ( void ) { m_Limitor.DecreaeSpeed(); }
+	void   IncreaseSpeed    ( void ) { m_Limitor.IncreaseSpeed(); }
+	void   DecreaseSpeed     ( void ) { m_Limitor.DecreaseSpeed(); }
 	void   Reset            ( bool bInitReg, bool ClearMenory );
 	void   GameReset        ( void );
 	void   PluginReset      ( void );
diff --git a/Source/Project64/N64 System/Speed Limitor Class.cpp b/Source/Project64/N64 System/Speed Limitor Class.cpp
index 33f6bced0..ad1e86f86 100644
--- a/Source/Project64/N64 System/Speed Limitor Class.cpp	
+++ b/Source/Project64/N64 System/Speed Limitor Class.cpp	
@@ -73,7 +73,7 @@ bool CSpeedLimitor::Timer_Process (DWORD * FrameRate ) {
 	}
 }
 
-void CSpeedLimitor::IncreaeSpeed ( void )
+void CSpeedLimitor::IncreaseSpeed ( void )
 {
 	if (m_Speed >= 60)      
 	{
@@ -91,7 +91,7 @@ void CSpeedLimitor::IncreaeSpeed ( void )
 	FixSpeedRatio();
 }
 
-void CSpeedLimitor::DecreaeSpeed ( void )
+void CSpeedLimitor::DecreaseSpeed ( void )
 {
 	if (m_Speed > 60)      
 	{
diff --git a/Source/Project64/N64 System/Speed Limitor Class.h b/Source/Project64/N64 System/Speed Limitor Class.h
index 285a5e850..d63d21620 100644
--- a/Source/Project64/N64 System/Speed Limitor Class.h	
+++ b/Source/Project64/N64 System/Speed Limitor Class.h	
@@ -19,8 +19,8 @@ public:
 
 	void SetHertz          ( const DWORD Hertz );
 	bool Timer_Process     ( DWORD * const FrameRate );
-	void IncreaeSpeed      ( void );
-	void DecreaeSpeed      ( void );
+	void IncreaseSpeed      ( void );
+	void DecreaseSpeed      ( void );
 
 private:
 	CSpeedLimitor(const CSpeedLimitor&);			// Disable copy constructor
diff --git a/Source/Project64/User Interface/Main Menu Class.cpp b/Source/Project64/User Interface/Main Menu Class.cpp
index 04adca6b0..ddbc44ce0 100644
--- a/Source/Project64/User Interface/Main Menu Class.cpp	
+++ b/Source/Project64/User Interface/Main Menu Class.cpp	
@@ -237,7 +237,7 @@ bool CMainMenu::ProcessMessage(HWND hWnd, DWORD /*FromAccelerator*/, DWORD MenuI
 		g_BaseSystem->IncreaseSpeed();
 		break;
 	case ID_OPTIONS_DECREASE_SPEED:
-		g_BaseSystem->DecreaeSpeed();
+		g_BaseSystem->DecreaseSpeed();
 		break;
 	case ID_OPTIONS_FULLSCREEN:
 		g_BaseSystem->ExternalEvent(SysEvent_ChangingFullScreen);