diff --git a/src/libextra/ebml.rs b/src/libextra/ebml.rs
index 3798ed8617e4..e3a05ae0960c 100644
--- a/src/libextra/ebml.rs
+++ b/src/libextra/ebml.rs
@@ -90,7 +90,7 @@ pub mod reader {
 
     // ebml reading
 
-    struct Res {
+    pub struct Res {
         val: uint,
         next: uint
     }