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-rw-r--r--src/window.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/window.c b/src/window.c
index 133229af5f6..89d9305ca33 100644
--- a/src/window.c
+++ b/src/window.c
@@ -1274,7 +1274,7 @@ window_loop (type, obj, mini, frames)
/* If this window is dedicated, and in a frame of its own,
kill the frame. */
if (EQ (w, FRAME_ROOT_WINDOW (f))
- && XWINDOW (w)->dedicated
+ && !NILP (XWINDOW (w)->dedicated)
&& other_visible_frames (f))
Fdelete_frame (WINDOW_FRAME (XWINDOW (w)), Qnil);
else