diff --git a/desmume/src/windows/hotkey.cpp b/desmume/src/windows/hotkey.cpp
index 7db098a28..12f57111e 100644
--- a/desmume/src/windows/hotkey.cpp
+++ b/desmume/src/windows/hotkey.cpp
@@ -157,6 +157,8 @@ void HK_AutoHoldClearKeyDown(int) {
 	}
 }
 
+void HK_ToggleLag(int) {ShowLagFrameCounter ^= true;}
+
 void HK_AutoHoldKeyDown(int) {AutoHoldPressed = true;}
 void HK_AutoHoldKeyUp(int) {AutoHoldPressed = false;}
 
@@ -228,6 +230,12 @@ void InitCustomKeys (SCustomKeys *keys)
 		i++;
 	};
 
+	keys->ToggleLag.handleKeyDown = HK_ToggleLag;
+	keys->ToggleLag.code = "Toggle Lag Display";
+	keys->ToggleLag.name = L"Toggle Lag Display";
+	keys->ToggleLag.page = HOTKEY_PAGE_MAIN;
+	keys->ToggleLag.key = NULL;
+	
 	keys->Pause.handleKeyDown = HK_Pause;
 	keys->Pause.code = "Pause";
 	keys->Pause.name = L"Pause";
diff --git a/desmume/src/windows/hotkey.h b/desmume/src/windows/hotkey.h
index e01521f19..7ebc969f8 100644
--- a/desmume/src/windows/hotkey.h
+++ b/desmume/src/windows/hotkey.h
@@ -74,6 +74,7 @@ struct SCustomKeys
 	SCustomKey ToggleRasterizer;
 
 	SCustomKey PrintScreen;
+	SCustomKey ToggleLag;
 	SCustomKey LastItem; // dummy, must be last
 
 	//--methods--
diff --git a/desmume/src/windows/main.h b/desmume/src/windows/main.h
index 2901e77b1..df973d5f9 100644
--- a/desmume/src/windows/main.h
+++ b/desmume/src/windows/main.h
@@ -13,6 +13,7 @@ void Display();
 void Pause();
 void FrameAdvance();
 extern bool ShowInputDisplay;
+extern bool ShowLagFrameCounter;
 
 #define GPU3D_NULL 0
 #define GPU3D_OPENGL 1