summaryrefslogtreecommitdiffstats
path: root/generic/tclCmdMZ.c
diff options
context:
space:
mode:
Diffstat (limited to 'generic/tclCmdMZ.c')
-rw-r--r--generic/tclCmdMZ.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index d64299e..0bd6cb4 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -1447,6 +1447,9 @@ StringIndexCmd(
char buf[4];
length = Tcl_UniCharToUtf(ch, buf);
+ if (!length) {
+ length = Tcl_UniCharToUtf(-1, buf);
+ }
Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, length));
}
}