--- libgps_sock.c.org	2016-07-14 14:36:05.864753326 +0200
+++ libgps_sock.c	2016-07-14 14:36:48.580586123 +0200
@@ -79,6 +79,7 @@
 	return -1;
     PRIVATE(gpsdata)->newstyle = false;
     PRIVATE(gpsdata)->waiting = 0;
+    PRIVATE(gpsdata)->buffer[0] = '\0';
 
 #ifdef LIBGPS_DEBUG
     PRIVATE(gpsdata)->waitcount = 0;