diff --git a/alternative-tzdb_dat.patch b/alternative-tzdb_dat.patch
index fb1fdc1..10aa9f4 100644
--- a/alternative-tzdb_dat.patch
+++ b/alternative-tzdb_dat.patch
@@ -1,5 +1,5 @@
 --- openjdk/jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java	2017-07-27 02:47:51.000000000 +0200
-+++ openjdk/jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java	2017-09-28 17:44:23.511675990 +0200
++++ openjdk/jdk/src/share/classes/sun/util/calendar/ZoneInfoFile.java	2017-09-30 21:18:06.562932697 +0200
 @@ -31,6 +31,7 @@
  import java.io.DataInputStream;
  import java.io.File;
@@ -16,14 +16,12 @@
  import java.util.Set;
  import java.util.SimpleTimeZone;
  import java.util.concurrent.ConcurrentHashMap;
-@@ -251,7 +253,17 @@
+@@ -251,7 +253,15 @@
          AccessController.doPrivileged(new PrivilegedAction<Object>() {
              public Object run() {
                  try {
 -                    String libDir = System.getProperty("java.home") + File.separator + "lib";
-+                    final String homeDir =
-+                        AccessController.doPrivileged(
-+                            new sun.security.action.GetPropertyAction("java.home"));
++                    final String homeDir = new GetPropertyAction("java.home");
 +                    if (homeDir == null) {
 +                        throw new Error("java.home is not set");
 +                    }
@@ -35,7 +33,7 @@
                      try (DataInputStream dis = new DataInputStream(
                               new BufferedInputStream(new FileInputStream(
                                   new File(libDir, "tzdb.dat"))))) {
-@@ -264,6 +276,30 @@
+@@ -264,6 +274,30 @@
              }
          });
      }