diff --git a/browser/components/places/src/nsNavHistoryResult.cpp b/browser/components/places/src/nsNavHistoryResult.cpp
index a2320c2d1d2e..a0d9395ca2c2 100755
--- a/browser/components/places/src/nsNavHistoryResult.cpp
+++ b/browser/components/places/src/nsNavHistoryResult.cpp
@@ -3046,7 +3046,8 @@ nsNavHistoryFolderResultNode::RecursiveSort(
 // Separator nodes do not hold any data
 
 nsNavHistorySeparatorResultNode::nsNavHistorySeparatorResultNode()
-  : nsNavHistoryResultNode(EmptyCString(), 0, 0, EmptyCString())
+  : nsNavHistoryResultNode(EmptyCString(), EmptyCString(),
+                           0, 0, EmptyCString())
 {
 }