diff --git a/tket2/src/rewrite/ecc_rewriter.rs b/tket2/src/rewrite/ecc_rewriter.rs
index bdbc681e..ccf63b04 100644
--- a/tket2/src/rewrite/ecc_rewriter.rs
+++ b/tket2/src/rewrite/ecc_rewriter.rs
@@ -175,8 +175,8 @@ impl ECCRewriter {
         Self::load_binary_io(&mut file)
     }
 
-    //// When the ECC gets loaded, all custom operations are an instance of `OpaqueOp`.
-    //// We need to resolve them into `ExtensionOp`s by validating the definitions.
+    /// When the ECC gets loaded, all custom operations are an instance of `OpaqueOp`.
+    /// We need to resolve them into `ExtensionOp`s by validating the definitions.
     fn resolve_extension_ops(&mut self) -> Result<(), ExtensionResolutionError> {
         self.targets
             .iter_mut()