diff --git a/modules/Performance.lua b/modules/Performance.lua
index ef7281c..92b20fe 100644
--- a/modules/Performance.lua
+++ b/modules/Performance.lua
@@ -139,9 +139,9 @@ function Performance:stopTimer(name)
 
   -- Check for warnings
   if elapsed > self.criticalThresholdMs then
-    self:addWarning(name, elapsed, "critical")
+    self:_addWarning(name, elapsed, "critical")
   elseif elapsed > self.warningThresholdMs then
-    self:addWarning(name, elapsed, "warning")
+    self:_addWarning(name, elapsed, "warning")
   end
 
   if self.logToConsole then