diff --git a/src/include/Makefile.Host b/src/include/Makefile.Host
index fa13a39f9..bc91b2e68 100644
--- a/src/include/Makefile.Host
+++ b/src/include/Makefile.Host
@@ -12,7 +12,9 @@ INC += shareLib.h
 INC += bsdProto.h
 INC += task_params.h
 INC += osiMutexNOOP.h
+INC += unixFileName.h
 
+OSINC += osiFileName.h
 OSINC += osiSock.h
 
 include $(TOP)/config/RULES.Host
diff --git a/src/include/Makefile.Vx b/src/include/Makefile.Vx
index 44fc10f87..cc2723c22 100755
--- a/src/include/Makefile.Vx
+++ b/src/include/Makefile.Vx
@@ -2,6 +2,7 @@ TOP = ../../..
 include $(TOP)/config/CONFIG_BASE
 
 OSINC += osiSock.h
+OSINC += osiFileName.h
 
 include $(TOP)/config/RULES.Vx