diff --git a/mozilla/widget/src/beos/nsLookAndFeel.cpp b/mozilla/widget/src/beos/nsLookAndFeel.cpp
index de14d68a96d..2cd2e23ed2e 100644
--- a/mozilla/widget/src/beos/nsLookAndFeel.cpp
+++ b/mozilla/widget/src/beos/nsLookAndFeel.cpp
@@ -396,7 +396,7 @@ NS_IMETHODIMP nsLookAndFeel::GetMetric(const nsMetricID aID, PRInt32 & aMetric)
       aMetric = 3;
       break;
     default:
-        aMetric = -1;
+        aMetric = 0;
         res = NS_ERROR_FAILURE;
     }
   return res;