diff --git a/jdk/make/tools/src/build/tools/javazic/Zoneinfo.java b/jdk/make/tools/src/build/tools/javazic/Zoneinfo.java
index 143c687d51b..872cc1144c8 100644
--- a/jdk/make/tools/src/build/tools/javazic/Zoneinfo.java
+++ b/jdk/make/tools/src/build/tools/javazic/Zoneinfo.java
@@ -222,6 +222,7 @@ class Zoneinfo {
         boolean continued = false;
         Zone zone = null;
         String l;
+        lineNum = 0;
 
         try {
             while ((line = in.readLine()) != null) {