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-rw-r--r--src/libutil/util.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libutil/util.cc b/src/libutil/util.cc
index 6f3bf7ae86e3..ad8cc1894c14 100644
--- a/src/libutil/util.cc
+++ b/src/libutil/util.cc
@@ -1452,7 +1452,7 @@ static Sync<std::pair<unsigned short, unsigned short>> windowSize{{0, 0}};
 static void updateWindowSize()
 {
     struct winsize ws;
-    if (ioctl(1, TIOCGWINSZ, &ws) == 0) {
+    if (ioctl(2, TIOCGWINSZ, &ws) == 0) {
         auto windowSize_(windowSize.lock());
         windowSize_->first = ws.ws_row;
         windowSize_->second = ws.ws_col;