1 files changed, 4 insertions, 1 deletions

diff --git a/editors/sed.c b/editors/sed.c
index e18e48ab5..e1b8352fd 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -395,7 +395,9 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, const char *substr)
         /* process the flags */
 
         sed_cmd->which_match = 1;
+        dbg("s flags:'%s'", substr + idx + 1);
         while (substr[++idx]) {
+                dbg("s flag:'%c'", substr[idx]);
                 /* Parse match number */
                 if (isdigit(substr[idx])) {
                         if (match[0] != '^') {
@@ -403,7 +405,7 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, const char *substr)
                                 const char *pos = substr + idx;
 /* FIXME: error check? */
                                 sed_cmd->which_match = (unsigned)strtol(substr+idx, (char**) &pos, 10);
-                                idx = pos - substr;
+                                idx = pos - substr - 1;
                         }
                         continue;
                 }
@@ -443,6 +445,7 @@ static int parse_subst_cmd(sed_cmd_t *sed_cmd, const char *substr)
                 case '}':
                         goto out;
                 default:
+                        dbg("s bad flags:'%s'", substr + idx);
                         bb_error_msg_and_die("bad option in substitution expression");
                 }
         }