diff --git a/mozilla/layout/base/nsPresShell.cpp b/mozilla/layout/base/nsPresShell.cpp
index 75319bb4309..e1cd0aa1119 100644
--- a/mozilla/layout/base/nsPresShell.cpp
+++ b/mozilla/layout/base/nsPresShell.cpp
@@ -1098,7 +1098,7 @@ PresShell::Init(nsIDocument* aDocument,
     return result;
   }
 
-  result = mSelection->Init((nsIFocusTracker *) this);
+  result = mSelection->Init((nsIFocusTracker *) this, nsnull);
   if (!NS_SUCCEEDED(result))
     return result;
   // Important: this has to happen after the selection has been set up
diff --git a/mozilla/layout/html/base/src/nsPresShell.cpp b/mozilla/layout/html/base/src/nsPresShell.cpp
index 75319bb4309..e1cd0aa1119 100644
--- a/mozilla/layout/html/base/src/nsPresShell.cpp
+++ b/mozilla/layout/html/base/src/nsPresShell.cpp
@@ -1098,7 +1098,7 @@ PresShell::Init(nsIDocument* aDocument,
     return result;
   }
 
-  result = mSelection->Init((nsIFocusTracker *) this);
+  result = mSelection->Init((nsIFocusTracker *) this, nsnull);
   if (!NS_SUCCEEDED(result))
     return result;
   // Important: this has to happen after the selection has been set up