diff --git a/mozilla/rdf/base/src/nsRDFXMLDataSource.cpp b/mozilla/rdf/base/src/nsRDFXMLDataSource.cpp
index 671949cdfdf..ea6a6422836 100644
--- a/mozilla/rdf/base/src/nsRDFXMLDataSource.cpp
+++ b/mozilla/rdf/base/src/nsRDFXMLDataSource.cpp
@@ -857,7 +857,7 @@ RDFXMLDataSourceImpl::Flush(void)
     if (!mIsWritable || !mIsDirty)
         return NS_OK;
 
-    // while it is not fatal if mOriginalURLSpec is not set,
+    // while it is not fatal if mURL is not set,
     // indicate failure since we can't flush back to an unknown origin
     if (! mURL)
         return NS_ERROR_NOT_INITIALIZED;