diff --git a/core/src/main/java/hudson/Util.java b/core/src/main/java/hudson/Util.java
index 635213941be450c8a0383204f7f33beed2f2d606..29dbd66cc37bd9b3847f535cf2977d32ba827cec 100644
--- a/core/src/main/java/hudson/Util.java
+++ b/core/src/main/java/hudson/Util.java
@@ -337,7 +337,7 @@ public class Util {
     
     public static String getDigestOf(String text) {
         try {
-            return getDigestOf(new ByteArrayInputStream(text.getBytes()));
+            return getDigestOf(new ByteArrayInputStream(text.getBytes("UTF-8")));
         } catch (IOException e) {
             throw new Error(e);
         }