1 files changed, 1 insertions, 1 deletions
diff --git a/src/library.js b/src/library.js
index 30947fe2..bb9676cc 100644
--- a/src/library.js
+++ b/src/library.js
@@ -7741,7 +7741,7 @@ LibraryManager.library = {
     // struct protoent *getprotoent(void);
     // reads the  next  entry  from  the  protocols 'database' or return NULL if 'eof'
     if (_setprotoent.index === PROTOCOL_LIST.length) {
-      return null; 
+      return 0; 
     } else {
       var result = PROTOCOL_LIST[_setprotoent.index++];
       return result;