1 files changed, 1 insertions, 1 deletions
diff --git a/src/packrat-parsers.adb b/src/packrat-parsers.adb
index 0ddd864..7f7f7f1 100644
--- a/src/packrat-parsers.adb
+++ b/src/packrat-parsers.adb
@@ -711,7 +711,7 @@ package body Packrat.Parsers is
             return Combinator_Result is
         begin
             if Combo = null then
-                raise Parser_Error;
+                raise Constraint_Error;
             else
                 return Combo (Input, Context, Start);
             end if;