diff --git a/dump1090.h b/dump1090.h
index 58c0950..23ece25 100644
--- a/dump1090.h
+++ b/dump1090.h
@@ -200,6 +200,10 @@ typedef struct rtlsdr_dev rtlsdr_dev_t;
 #define MODES_NET_SNDBUF_SIZE (1024*64)
 #define MODES_NET_SNDBUF_MAX  (7)
 
+#ifndef HTMLPATH
+#define HTMLPATH   "./public_html"      // default path for gmap.html etc
+#endif
+
 #define HISTORY_SIZE 120
 #define HISTORY_INTERVAL 30000