diff --git a/src/libCom/test/epicsAtomicPerform.cpp b/src/libCom/test/epicsAtomicPerform.cpp
index 283190932..5a8307598 100644
--- a/src/libCom/test/epicsAtomicPerform.cpp
+++ b/src/libCom/test/epicsAtomicPerform.cpp
@@ -421,7 +421,7 @@ void epicsAtomicIncrPerformance ()
     testDiag ( "epicsAtomicIncr() takes %f microseconds", delay );
 }
 
-void atomicCompareAndSetPerformance ()
+void atomicTestAndSetPerformance ()
 {
     epicsTime begin = epicsTime::getCurrent ();
     unsigned target;