diff --git a/src/m_menu.cpp b/src/m_menu.cpp
index 7628b336e..299dbc53f 100644
--- a/src/m_menu.cpp
+++ b/src/m_menu.cpp
@@ -548,6 +548,14 @@ static oldmenuitem_t PlayerSetupMenu[] =
 	{ 2,0,'a',NULL,M_ChangeAutoAim, CR_UNTRANSLATED}
 };
 
+enum
+{
+	// These must be changed if the menu definition is altered
+	PSM_RED = 3,
+	PSM_GREEN = 4,
+	PSM_BLUE = 5,
+};
+
 static oldmenu_t PSetupDef =
 {
 	countof(PlayerSetupMenu),
@@ -2753,6 +2761,11 @@ static void M_ChangeColorSet (int choice)
 	}
 	mycolorset = (curpos >= 0) ? PlayerColorSets[curpos] : -1;
 
+	// disable the sliders if a valid colorset is selected
+	PlayerSetupMenu[PSM_RED].status =
+	PlayerSetupMenu[PSM_GREEN].status =
+	PlayerSetupMenu[PSM_BLUE].status = (mycolorset == -1? 2:-1);
+
 	char command[24];
 	mysnprintf(command, countof(command), "colorset %d", mycolorset);
 	C_DoCommand(command);