diff --git a/expat/xmlwf/readfilemap.c b/expat/xmlwf/readfilemap.c
index 7829f612..4e5e5d11 100755
--- a/expat/xmlwf/readfilemap.c
+++ b/expat/xmlwf/readfilemap.c
@@ -27,6 +27,8 @@ See the file COPYING for copying permission.
 #endif
 #endif
 
+#include "filemap.h"
+
 int filemap(const char *name,
 	    void (*processor)(const void *, size_t, const char *, void *arg),
 	    void *arg)