diff --git a/components/layout/fragment.rs b/components/layout/fragment.rs
index 0458c2bb738..37cec720b1b 100644
--- a/components/layout/fragment.rs
+++ b/components/layout/fragment.rs
@@ -672,7 +672,7 @@ impl UnscannedTextFragmentInfo {
 #[derive(Copy, Clone)]
 pub struct TableColumnFragmentInfo {
     /// the number of columns a <col> element should span
-    pub span: int,
+    pub span: u32,
 }
 
 impl TableColumnFragmentInfo {
@@ -681,7 +681,7 @@ impl TableColumnFragmentInfo {
         let span = {
             let element = node.as_element();
             element.get_attr(&ns!(""), &atom!("span")).and_then(|string| {
-                let n: Option<int> = FromStr::from_str(string).ok();
+                let n: Option<u32> = FromStr::from_str(string).ok();
                 n
             }).unwrap_or(0)
         };
diff --git a/components/layout/table_colgroup.rs b/components/layout/table_colgroup.rs
index edb6d64bd0f..d112be8ce0b 100644
--- a/components/layout/table_colgroup.rs
+++ b/components/layout/table_colgroup.rs
@@ -69,7 +69,7 @@ impl Flow for TableColGroupFlow {
         for fragment in self.cols.iter() {
             // Retrieve the specified value from the appropriate CSS property.
             let inline_size = fragment.style().content_inline_size();
-            let span: int = match fragment.specific {
+            let span = match fragment.specific {
                 SpecificFragmentInfo::TableColumn(col_fragment) => max(col_fragment.span, 1),
                 _ => panic!("non-table-column fragment inside table column?!"),
             };