diff --git a/src/include/os/cygwin32/osiFileName.h b/src/include/os/cygwin32/osiFileName.h
index 60e0a20da..0268e0f40 100644
--- a/src/include/os/cygwin32/osiFileName.h
+++ b/src/include/os/cygwin32/osiFileName.h
@@ -7,6 +7,7 @@
 #ifndef osiFileNameH
 #define osiFileNameH
 
-#include "unixFileName.h"
+#define OSI_PATH_LIST_SEPARATOR ";"
+#define OSI_PATH_SEPARATOR "\\"
 
 #endif /* osiFileNameH */
diff --git a/src/libCom/osi/os/cygwin32/osiFileName.h b/src/libCom/osi/os/cygwin32/osiFileName.h
index 60e0a20da..0268e0f40 100644
--- a/src/libCom/osi/os/cygwin32/osiFileName.h
+++ b/src/libCom/osi/os/cygwin32/osiFileName.h
@@ -7,6 +7,7 @@
 #ifndef osiFileNameH
 #define osiFileNameH
 
-#include "unixFileName.h"
+#define OSI_PATH_LIST_SEPARATOR ";"
+#define OSI_PATH_SEPARATOR "\\"
 
 #endif /* osiFileNameH */