diff --git a/webshell/tests/viewer/nsViewer.cpp b/webshell/tests/viewer/nsViewer.cpp
index 65f512e42cd0..15c9e095a3f2 100644
--- a/webshell/tests/viewer/nsViewer.cpp
+++ b/webshell/tests/viewer/nsViewer.cpp
@@ -222,7 +222,7 @@ DocObserver::OnProgress(PRInt32 aProgress, PRInt32 aProgressMax,
 {
   fputs("[progress ", stdout);
   fputs(mURL, stdout);
-  printf(" %d %d %s]\n", aProgressMax, aProgressMax,
+  printf(" %d %d %s]\n", aProgress, aProgressMax,
          aMsg ? aMsg : "");
   return NS_OK;
 }