diff --git a/components/script/dom/servohtmlparser.rs b/components/script/dom/servohtmlparser.rs
index eed6efb4b20..ec01187e2b4 100644
--- a/components/script/dom/servohtmlparser.rs
+++ b/components/script/dom/servohtmlparser.rs
@@ -53,9 +53,6 @@ pub struct ServoHTMLParser {
     tokenizer: DOMRefCell<Tokenizer>,
     /// True if this parser should avoid passing any further data to the tokenizer.
     suspended: Cell<bool>,
-    /// The pipeline associated with this parse, unavailable if this parse does not
-    /// correspond to a page load.
-    pipeline: Option<PipelineId>,
 }
 
 impl<'a> Parser for &'a ServoHTMLParser {
@@ -76,7 +73,7 @@ impl<'a> Parser for &'a ServoHTMLParser {
 
         self.upcast().document().set_current_parser(None);
 
-        if let Some(pipeline) = self.pipeline {
+        if let Some(pipeline) = self.upcast().pipeline() {
             ScriptThread::parsing_complete(pipeline);
         }
     }
@@ -99,10 +96,9 @@ impl ServoHTMLParser {
         let tok = tokenizer::Tokenizer::new(tb, Default::default());
 
         let parser = ServoHTMLParser {
-            servoparser: ServoParser::new_inherited(document, false),
+            servoparser: ServoParser::new_inherited(document, pipeline, false),
             tokenizer: DOMRefCell::new(tok),
             suspended: Cell::new(false),
-            pipeline: pipeline,
         };
 
         reflect_dom_object(box parser, document.window(), ServoHTMLParserBinding::Wrap)
@@ -132,10 +128,9 @@ impl ServoHTMLParser {
         let tok = tokenizer::Tokenizer::new(tb, tok_opts);
 
         let parser = ServoHTMLParser {
-            servoparser: ServoParser::new_inherited(document, true),
+            servoparser: ServoParser::new_inherited(document, None, true),
             tokenizer: DOMRefCell::new(tok),
             suspended: Cell::new(false),
-            pipeline: None,
         };
 
         reflect_dom_object(box parser, document.window(), ServoHTMLParserBinding::Wrap)
diff --git a/components/script/dom/servoparser.rs b/components/script/dom/servoparser.rs
index c5611a6364d..4a2bc0de400 100644
--- a/components/script/dom/servoparser.rs
+++ b/components/script/dom/servoparser.rs
@@ -6,6 +6,7 @@ use dom::bindings::cell::DOMRefCell;
 use dom::bindings::reflector::Reflector;
 use dom::bindings::js::JS;
 use dom::document::Document;
+use msg::constellation_msg::PipelineId;
 use std::cell::Cell;
 
 #[dom_struct]
@@ -13,6 +14,9 @@ pub struct ServoParser {
     reflector: Reflector,
     /// The document associated with this parser.
     document: JS<Document>,
+    /// The pipeline associated with this parse, unavailable if this parse
+    /// does not correspond to a page load.
+    pipeline: Option<PipelineId>,
     /// Input chunks received but not yet passed to the parser.
     pending_input: DOMRefCell<Vec<String>>,
     /// Whether to expect any further input from the associated network request.
@@ -20,10 +24,15 @@ pub struct ServoParser {
 }
 
 impl ServoParser {
-    pub fn new_inherited(document: &Document, last_chunk_received: bool) -> Self {
+    pub fn new_inherited(
+            document: &Document,
+            pipeline: Option<PipelineId>,
+            last_chunk_received: bool)
+            -> Self {
         ServoParser {
             reflector: Reflector::new(),
             document: JS::from_ref(document),
+            pipeline: pipeline,
             pending_input: DOMRefCell::new(vec![]),
             last_chunk_received: Cell::new(last_chunk_received),
         }
@@ -33,6 +42,10 @@ impl ServoParser {
         &self.document
     }
 
+    pub fn pipeline(&self) -> Option<PipelineId> {
+        self.pipeline
+    }
+
     pub fn has_pending_input(&self) -> bool {
         !self.pending_input.borrow().is_empty()
     }
diff --git a/components/script/dom/servoxmlparser.rs b/components/script/dom/servoxmlparser.rs
index 4dc9b942b7b..119dd8f4b47 100644
--- a/components/script/dom/servoxmlparser.rs
+++ b/components/script/dom/servoxmlparser.rs
@@ -38,9 +38,6 @@ pub struct ServoXMLParser {
     tokenizer: DOMRefCell<Tokenizer>,
     /// True if this parser should avoid passing any further data to the tokenizer.
     suspended: Cell<bool>,
-    /// The pipeline associated with this parse, unavailable if this parse does not
-    /// correspond to a page load.
-    pipeline: Option<PipelineId>,
 }
 
 impl<'a> Parser for &'a ServoXMLParser {
@@ -61,7 +58,7 @@ impl<'a> Parser for &'a ServoXMLParser {
 
         self.upcast().document().set_current_parser(None);
 
-        if let Some(pipeline) = self.pipeline {
+        if let Some(pipeline) = self.upcast().pipeline() {
             ScriptThread::parsing_complete(pipeline);
         }
     }
@@ -81,10 +78,9 @@ impl ServoXMLParser {
         let tok = tokenizer::XmlTokenizer::new(tb, Default::default());
 
         let parser = ServoXMLParser {
-            servoparser: ServoParser::new_inherited(document, false),
+            servoparser: ServoParser::new_inherited(document, pipeline, false),
             tokenizer: DOMRefCell::new(tok),
             suspended: Cell::new(false),
-            pipeline: pipeline,
         };
 
         reflect_dom_object(box parser, document.window(), ServoXMLParserBinding::Wrap)