diff --git a/indra/llcommon/lleventfilter.h b/indra/llcommon/lleventfilter.h
index ccbbc8bd25b334ca23ad727f014e367ccb110ed2..ff8fc9bc7fc2330dd11f849e0eca0213743bcafd 100644
--- a/indra/llcommon/lleventfilter.h
+++ b/indra/llcommon/lleventfilter.h
@@ -336,11 +336,11 @@ class LLEventThrottle: public LLEventThrottleBase
     LLEventThrottle(LLEventPump& source, F32 interval);
 
 private:
-    virtual void alarmActionAfter(F32 interval, const LLEventTimeoutBase::Action& action) override;
-    virtual bool alarmRunning() const override;
-    virtual void alarmCancel() override;
-    virtual void timerSet(F32 interval) override;
-    virtual F32  timerGetRemaining() const override;
+    virtual void alarmActionAfter(F32 interval, const LLEventTimeoutBase::Action& action) /*override*/;
+    virtual bool alarmRunning() const /*override*/;
+    virtual void alarmCancel() /*override*/;
+    virtual void timerSet(F32 interval) /*override*/;
+    virtual F32  timerGetRemaining() const /*override*/;
 
     // use this to arrange a deferred flush() call
     LLEventTimeout mAlarm;
diff --git a/indra/llcommon/tests/lleventfilter_test.cpp b/indra/llcommon/tests/lleventfilter_test.cpp
index 712864bf63d4d99bb432cb792a77f37f134c94d3..eb98b12ef5260395b35e1c4fc429ce00cea847ec 100644
--- a/indra/llcommon/tests/lleventfilter_test.cpp
+++ b/indra/llcommon/tests/lleventfilter_test.cpp
@@ -88,29 +88,29 @@ class TestEventThrottle: public LLEventThrottleBase
     {}
 
     /*----- implementation of LLEventThrottleBase timing functionality -----*/
-    virtual void alarmActionAfter(F32 interval, const LLEventTimeoutBase::Action& action) override
+    virtual void alarmActionAfter(F32 interval, const LLEventTimeoutBase::Action& action) /*override*/
     {
         mAlarmRemaining = interval;
         mAlarmAction = action;
     }
 
-    virtual bool alarmRunning() const override
+    virtual bool alarmRunning() const /*override*/
     {
         // decrementing to exactly 0 should mean the alarm fires
         return mAlarmRemaining > 0;
     }
 
-    virtual void alarmCancel() override
+    virtual void alarmCancel() /*override*/
     {
         mAlarmRemaining = -1;
     }
 
-    virtual void timerSet(F32 interval) override
+    virtual void timerSet(F32 interval) /*override*/
     {
         mTimerRemaining = interval;
     }
 
-    virtual F32  timerGetRemaining() const override
+    virtual F32  timerGetRemaining() const /*override*/
     {
         // LLTimer.getRemainingTimeF32() never returns negative; 0.0 means expired
         return (mTimerRemaining > 0.0)? mTimerRemaining : 0.0;