diff --git a/src/m_menu.c b/src/m_menu.c
index 3c1d8d7ca..7d4e4b8ae 100644
--- a/src/m_menu.c
+++ b/src/m_menu.c
@@ -1347,7 +1347,7 @@ static menuitem_t OP_VideoOptionsMenu[] =
 #endif
 
 	{IT_HEADER, NULL, "Color Profile", NULL, 30},
-	{IT_STRING | IT_CVAR | IT_CV_SLIDER, NULL, "Brightness (F11)", &cv_globalgamma,36},
+	{IT_STRING | IT_CVAR | IT_CV_SLIDER, NULL, "Brightness", &cv_globalgamma,36},
 	{IT_STRING | IT_CVAR | IT_CV_SLIDER, NULL, "Saturation", &cv_globalsaturation, 41},
 	{IT_SUBMENU|IT_STRING, NULL, "Advanced Settings...",     &OP_ColorOptionsDef,  46},
 
@@ -3399,8 +3399,8 @@ boolean M_Responder(event_t *ev)
 				M_QuitSRB2(0);
 				return true;
 
-			case KEY_F11: // Gamma Level
-				CV_AddValue(&cv_globalgamma, 1);
+			case KEY_F11: // Fullscreen toggle, also processed inside menus
+				CV_SetValue(&cv_fullscreen, !cv_fullscreen.value);
 				return true;
 
 			// Spymode on F12 handled in game logic
@@ -3579,6 +3579,10 @@ boolean M_Responder(event_t *ev)
 			//	M_SetupNextMenu(currentMenu->prevMenu);
 			return false;
 
+		case KEY_F11: // Fullscreen toggle, also processed outside menus
+			CV_SetValue(&cv_fullscreen, !cv_fullscreen.value);
+			return true;
+
 		default:
 			CON_Responder(ev);
 			break;