diff --git a/build-tools/ant-gwt/src/com/google/gwt/ant/taskdefs/SvnInfo.java b/build-tools/ant-gwt/src/com/google/gwt/ant/taskdefs/SvnInfo.java
index 13530ed..7156cf0 100644
--- a/build-tools/ant-gwt/src/com/google/gwt/ant/taskdefs/SvnInfo.java
+++ b/build-tools/ant-gwt/src/com/google/gwt/ant/taskdefs/SvnInfo.java
@@ -123,7 +123,7 @@
   private String getSvnVersion(File workdir) {
     String line = null;
 
-    LineNumberReader svnout = runCommand(workdir, "svnversion");
+    LineNumberReader svnout = runCommand(workdir, "svnversion", ".");
     try {
       line = svnout.readLine();
     } catch (IOException e) {