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-rw-r--r--src/nvim/window.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/nvim/window.c b/src/nvim/window.c
index 2927855073..e761f7e40b 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -2760,6 +2760,7 @@ int win_close(win_T *win, bool free_buf, bool force)
if (win->w_floating) {
ui_comp_remove_grid(&win->w_grid_alloc);
+ assert(first_tabpage != NULL); // suppress clang "Dereference of NULL pointer"
if (win->w_float_config.external) {
for (tabpage_T *tp = first_tabpage; tp != NULL; tp = tp->tp_next) {
if (tp == curtab) {