diff --git a/src/partialGrammar.ml b/src/partialGrammar.ml
index 02605ffea61df502fbf11be2cd661906320cd5b3..a5cb3b54bde9c1c5a69bfa5b634c2ab6d36e5c38 100644
--- a/src/partialGrammar.ml
+++ b/src/partialGrammar.ml
@@ -198,7 +198,7 @@ let alphaconvert_rule parameters prule =
         pr_branches    = rewrite_branches phi prule.pr_branches
     }
 
-(* Rewrite a rule taking bounded names into account. We rename parameters
+(* Rewrite a rule taking bound names into account. We rename parameters
    to avoid capture. *)
 let rewrite_rule phi prule =
   let ids =