diff --git a/content/html/content/src/nsFormSubmission.cpp b/content/html/content/src/nsFormSubmission.cpp
index 86db9da4c61..66ea0c2c3e0 100644
--- a/content/html/content/src/nsFormSubmission.cpp
+++ b/content/html/content/src/nsFormSubmission.cpp
@@ -1051,7 +1051,6 @@ nsFSTextPlain::GetEncodedSubmission(nsIURI* aURI,
     mimeStream->SetAddContentLength(PR_TRUE);
     mimeStream->SetData(bodyStream);
     CallQueryInterface(mimeStream, aPostDataStream);
-    NS_ADDREF(*aPostDataStream);
   }
 
   return rv;