diff --git a/src/Language.ml b/src/Language.ml
index fbf8dc998..be2e6d16c 100644
--- a/src/Language.ml
+++ b/src/Language.ml
@@ -48,7 +48,7 @@ module Expr =
 
     (* Expression parser. You can use the following terminals:
 
-         IDENT   --- a non-empty identifier (a-zA-Z[a-zA-Z0-9_]*) as a string
+         IDENT   --- a non-empty identifier a-zA-Z[a-zA-Z0-9_]* as a string
          DECIMAL --- a decimal constant [0-9]+ as a string
    
     *)