diff --git a/build.xml b/build.xml
index 32ac51f39..a976dd6e5 100644
--- a/build.xml
+++ b/build.xml
@@ -1041,6 +1041,7 @@
              destdir="${build.javadocs}"
              author="true"
              version="true"
+             locale="en"
              windowtitle="${Name} API"
              doctitle="${Name}">
       <tag name="todo" description="To do:" scope="all" />
diff --git a/src/main/org/apache/tools/ant/taskdefs/Javadoc.java b/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
index bc860b92c..4dd23fcd8 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
@@ -480,8 +480,10 @@ public class Javadoc extends Task {
     }
     public void setLocale(String src) {
         if (!javadoc1) {
-            cmd.createArgument().setValue("-locale");
-            cmd.createArgument().setValue(src);
+            // createArgument(true) is necessary to make sure, -locale
+            // is the first argument (required in 1.3+).
+            cmd.createArgument(true).setValue(src);
+            cmd.createArgument(true).setValue("-locale");
         }
     }
     public void setEncoding(String enc) {