diff --git a/src/components/embedding/types.rs b/src/components/embedding/types.rs
index a4f538a6bba..c01e1ec0cf1 100644
--- a/src/components/embedding/types.rs
+++ b/src/components/embedding/types.rs
@@ -950,9 +950,10 @@ pub struct cef_scheme_registrar {
   // per unique |scheme_name| value. If |scheme_name| is already registered or
   // if an error occurs this function will return false (0).
   ///
-  add_custom_scheme: extern "C" fn(registrar: *mut cef_scheme_registrar,
-                               scheme_name: *cef_string_t,
-                               is_standard: c_int, is_local: c_int, is_display_isolated: c_int),
+  _add_custom_scheme: extern "C" fn(registrar: *mut cef_scheme_registrar,
+                                    scheme_name: *cef_string_t,
+                                    is_standard: c_int, is_local: c_int,
+                                    is_display_isolated: c_int),
 }
 
 ///
diff --git a/src/components/gfx/platform/linux/font.rs b/src/components/gfx/platform/linux/font.rs
index e61d092ae07..1299315ade2 100644
--- a/src/components/gfx/platform/linux/font.rs
+++ b/src/components/gfx/platform/linux/font.rs
@@ -37,7 +37,7 @@ fn fixed_to_float_ft(f: i32) -> f64 {
 }
 
 pub struct FontTable {
-    bogus: ()
+    _bogus: ()
 }
 
 impl FontTableMethods for FontTable {
diff --git a/src/components/layout/block.rs b/src/components/layout/block.rs
index 5e0b4a23670..36b525924a7 100644
--- a/src/components/layout/block.rs
+++ b/src/components/layout/block.rs
@@ -76,7 +76,7 @@ impl FloatedBlockInfo {
 /// The solutions for the heights-and-margins constraint equation.
 struct HeightConstraintSolution {
     top: Au,
-    bottom: Au,
+    _bottom: Au,
     height: Au,
     margin_top: Au,
     margin_bottom: Au
@@ -87,7 +87,7 @@ impl HeightConstraintSolution {
            -> HeightConstraintSolution {
         HeightConstraintSolution {
             top: top,
-            bottom: bottom,
+            _bottom: bottom,
             height: height,
             margin_top: margin_top,
             margin_bottom: margin_bottom,
diff --git a/src/components/layout/flow_list.rs b/src/components/layout/flow_list.rs
index 1bb30572da9..19ccb68727e 100644
--- a/src/components/layout/flow_list.rs
+++ b/src/components/layout/flow_list.rs
@@ -38,7 +38,7 @@ pub struct FlowListIterator<'a> {
 
 /// Double-ended mutable FlowList iterator
 pub struct MutFlowListIterator<'a> {
-    list: &'a mut FlowList,
+    _list: &'a mut FlowList,
     head: Rawlink,
     nelem: uint,
 }
@@ -208,7 +208,7 @@ impl FlowList {
         MutFlowListIterator {
             nelem: self.len(),
             head: head_raw,
-            list: self
+            _list: self
         }
     }
 }
diff --git a/src/components/script/dom/bindings/callback.rs b/src/components/script/dom/bindings/callback.rs
index 7a261bf7cc7..8b0c1879dd3 100644
--- a/src/components/script/dom/bindings/callback.rs
+++ b/src/components/script/dom/bindings/callback.rs
@@ -109,7 +109,7 @@ pub fn WrapCallThisObject<T: Reflectable>(cx: *mut JSContext,
 
 pub struct CallSetup {
     cx: *mut JSContext,
-    handling: ExceptionHandling
+    _handling: ExceptionHandling
 }
 
 impl CallSetup {
@@ -118,7 +118,7 @@ impl CallSetup {
         let cx = win.deref().get_cx();
         CallSetup {
             cx: cx,
-            handling: handling
+            _handling: handling
         }
     }