diff --git a/src/libCom/test/Makefile b/src/libCom/test/Makefile
index 1a2b256fb..cb3dab0de 100755
--- a/src/libCom/test/Makefile
+++ b/src/libCom/test/Makefile
@@ -98,7 +98,7 @@ TESTS += epicsTimeTest
 
 TESTPROD_HOST += epicsTimeZoneTest
 epicsTimeZoneTest_SRCS += epicsTimeZoneTest.c
-rtemsTestHarness_SRCS += epicsTimeZoneTest.c
+libComTestHarness_SRCS_RTEMS += epicsTimeZoneTest.c
 TESTS += epicsTimeZoneTest
 
 TESTPROD_HOST += epicsThreadTest