diff --git a/src/sdl/event.rs b/src/sdl/event.rs
index c0d50ee..c9c9f58 100644
--- a/src/sdl/event.rs
+++ b/src/sdl/event.rs
@@ -225,7 +225,7 @@ pub enum RepeatInterval {
     CustomRepeatInterval(int)
 }
 
-#[deriving(PartialEq, Eq, FromPrimitive, PartialOrd, Ord)]
+#[deriving(PartialEq, Eq, FromPrimitive, PartialOrd, Ord, Clone)]
 pub enum Key {
     UnknownKey = 0,
     BackspaceKey = 8,
diff --git a/src/sdl/video.rs b/src/sdl/video.rs
index 97fdede..5e00744 100644
--- a/src/sdl/video.rs
+++ b/src/sdl/video.rs
@@ -190,6 +190,21 @@ impl Drop for Surface {
     }
 }
 
+impl Clone for Surface {
+    fn clone(&self) -> Surface {
+        if !self.owned {
+            Surface{ raw: self.raw, owned: false }
+        }
+        else {
+            let raw = unsafe { ll::SDL_ConvertSurface(self.raw, (*self.raw).format, (*self.raw).flags) };
+            if raw.is_null() { // this should never happen, since self.raw, format and flags are proven correct
+                fail!("couldn't clone surface: {}", get_error());
+            }
+            Surface{ raw: raw, owned: true }
+        }
+    }
+}
+
 #[deriving(PartialEq)]
 #[allow(raw_pointer_deriving)]
 pub struct Palette {