diff --git a/src/parser/parser.nim b/src/parser/parser.nim
index f9606e7..2298eea 100644
--- a/src/parser/parser.nim
+++ b/src/parser/parser.nim
@@ -307,6 +307,7 @@ func choice*(parsers: seq[Parser -> ParserResult]): (Parser -> ParserResult) {.i
         let prettyErrors = errors.map((x: ParserResult) => x.error().expected)
         err(ParserError(
           kind: choiceMismatchErr,
+          index: parser.state.position + 1,
           expected: &"Choice ({prettyErrors})",
           unexpected: errors[0].error().unexpected,
           parser: parser,