Pass the character index, not the character, to parse_util_expand_variable_error

Fixes #2067

1 files changed, 1 insertions, 1 deletions

diff --git a/expand.cpp b/expand.cpp
index f927f3c0..1d541a24 100644
--- a/expand.cpp
+++ b/expand.cpp
@@ -1034,7 +1034,7 @@ static int expand_variables(parser_t &parser, const wcstring &instr, std::vector
             {
                 if (errors)
                 {
-                    parse_util_expand_variable_error(instr, 0 /* global_token_pos */, c, errors);
+                    parse_util_expand_variable_error(instr, 0 /* global_token_pos */, i, errors);
                 }
 
                 is_ok = false;