--- zkc-3.4.5/c/src/zookeeper.c 2019-09-13 12:05:20.647034862 +0200
+++ zkc-3.4.5/c/src/zookeeper.c 2019-09-13 12:05:49.125360269 +0200
@@ -3418,7 +3418,7 @@
 
 static const char* format_endpoint_info(const struct sockaddr_storage* ep)
 {
-    static char buf[128];
+    static char buf[128 + 6]; // include space for the port :xxxxxx
     char addrstr[128];
     void *inaddr;
 #ifdef WIN32