diff --git a/layout/generic/nsObjectFrame.cpp b/layout/generic/nsObjectFrame.cpp
index 3990bbaab1c..e943017bc1c 100644
--- a/layout/generic/nsObjectFrame.cpp
+++ b/layout/generic/nsObjectFrame.cpp
@@ -686,6 +686,8 @@ nsObjectFrame::Reflow(nsPresContext*           aPresContext,
 
   // Get our desired size
   GetDesiredSize(aPresContext, aReflowState, aMetrics);
+  aMetrics.mOverflowArea = nsRect(0, 0,
+                                  aMetrics.width, aMetrics.height);
 
   // delay plugin instantiation until all children have
   // arrived. Otherwise there may be PARAMs or other stuff that the