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-rw-r--r--generic/tclCmdMZ.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c
index 1a08674..10c2ef3 100644
--- a/generic/tclCmdMZ.c
+++ b/generic/tclCmdMZ.c
@@ -2873,7 +2873,8 @@ StringCatCmd(
return TCL_OK;
}
- code = TclStringCatObjv(interp, objc-1, objv+1, &objResultPtr);
+ code = TclStringCatObjv(interp, /* inPlace */ 1, objc-1, objv+1,
+ &objResultPtr);
if (code == TCL_OK) {
Tcl_SetObjResult(interp, objResultPtr);