diff --git a/api/api.lua b/api/api.lua
index 34a6221b..31193ab3 100644
--- a/api/api.lua
+++ b/api/api.lua
@@ -28,6 +28,14 @@ function pfUI.api.HasNampower()
   return GetNampowerVersion and true or false
 end
 
+local isTurtleWoW
+function pfUI.api.IsTurtleWoW()
+  if isTurtleWoW == nil then
+    isTurtleWoW = C_Spell.GetSpellTexture(46050) == "Interface\\Icons\\Trade_Survival"
+  end
+  return isTurtleWoW
+end
+
 -- [ GetUnitDistance ]
 -- Returns distance to unit using best available method
 -- 'unit1'    [string]    first unit (default: "player")
diff --git a/modules/xpbar.lua b/modules/xpbar.lua
index 012c32bb..ff822756 100644
--- a/modules/xpbar.lua
+++ b/modules/xpbar.lua
@@ -4,7 +4,11 @@ pfUI:RegisterModule("xpbar", function ()
 
   -- Rested-XP gain tracking constants
   local REST_WINDOW = 300    -- seconds of sliding-window samples for rate calc
+  
   local REST_CAP_MUL = 1.5   -- target rested cap = UnitXPMax * 1.5
+  if IsTurtleWoW() then
+    REST_CAP_MUL = 1.13
+  end
 
   local data = CreateFrame("Frame", "pfExperienceBarData", UIParent)
   data.rest_samples = {}