diff --git a/src/include/Makefile.Host b/src/include/Makefile.Host
index 695f999d4..479f38320 100644
--- a/src/include/Makefile.Host
+++ b/src/include/Makefile.Host
@@ -12,8 +12,10 @@ INC += shareLib.h
 INC += bsdProto.h
 INC += task_params.h
 INC += osiMutexNOOP.h
+INC += unixFileName.h
 
 OSINC += osiSock.h
+OSINC += osiFileName.h
 
 include $(TOP)/config/RULES.Host
 
@@ -21,6 +23,6 @@ include $(TOP)/config/RULES.Host
 #	epicsVersion.h is rebuild in any case,
 #	no matter what date ...CONFIG_BASE_VERSION has
 epicsVersion.h: $(TOP)/config/CONFIG_BASE_VERSION
-	$(PERL) ../makeEpicsVersion.pl $(TOP)/config/CONFIG_BASE_VERSION
+	perl ../makeEpicsVersion.pl $(TOP)/config/CONFIG_BASE_VERSION