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-rw-r--r--ext/tk/tcltklib.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/tk/tcltklib.c b/ext/tk/tcltklib.c
index 14e8199d8..6bc8c3185 100644
--- a/ext/tk/tcltklib.c
+++ b/ext/tk/tcltklib.c
@@ -8394,6 +8394,7 @@ Init_tcltklib()
#define DEFAULT_EVENTLOOP_DEPTH 7
#endif
eventloop_stack = rb_ary_new2(DEFAULT_EVENTLOOP_DEPTH);
+ OBJ_TAINT(eventloop_stack);
watchdog_thread = Qnil;