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-rw-r--r--src/libutil/util.cc2
-rw-r--r--src/nix/progress-bar.cc2
2 files changed, 2 insertions, 2 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;
diff --git a/src/nix/progress-bar.cc b/src/nix/progress-bar.cc
index 5c05d6b227ed..661966733d36 100644
--- a/src/nix/progress-bar.cc
+++ b/src/nix/progress-bar.cc
@@ -341,7 +341,7 @@ public:
         }
 
         auto width = getWindowSize().second;
-        if (width <= 0) std::numeric_limits<decltype(width)>::max();
+        if (width <= 0) width = std::numeric_limits<decltype(width)>::max();
 
         writeToStderr("\r" + filterANSIEscapes(line, false, width) + "\e[K");
     }