diff --git a/src/libCom/test/Makefile b/src/libCom/test/Makefile
index 4fa6fc29e..94abfdb95 100644
--- a/src/libCom/test/Makefile
+++ b/src/libCom/test/Makefile
@@ -26,10 +26,6 @@ epicsThreadPrivateTestHost_SRCS += epicsThreadPrivateTestMain.cpp epicsThreadPri
 PROD += epicsThreadPrivateTestHost
 OBJS_IOC += epicsThreadPrivateTest
 
-timerTestHost_SRCS += timerTestMain.c timerTest.c
-PROD += timerTestHost
-OBJS_IOC += timerTest
-
 epicsTimerTestHost_SRCS += epicsTimerTestMain.cpp epicsTimerTest.cpp
 PROD += epicsTimerTestHost
 OBJS_IOC += epicsTimerTest