diff --git a/src/test/java/org/archive/net/PublicSuffixesTest.java b/src/test/java/org/archive/net/PublicSuffixesTest.java
index 7528bbe1..ca6e6408 100644
--- a/src/test/java/org/archive/net/PublicSuffixesTest.java
+++ b/src/test/java/org/archive/net/PublicSuffixesTest.java
@@ -36,7 +36,7 @@
  */
 public class PublicSuffixesTest extends TestCase {
     // test of low level implementation
-    private final String NL = System.lineSeparator();
+    private final String NL = System.getProperty("line.separator");
     
     public void testCompare() {
         Node n = new Node("hoge");