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-rw-r--r--src/nvim/drawline.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/nvim/drawline.c b/src/nvim/drawline.c
index 0b88c307c7..b5c0755d44 100644
--- a/src/nvim/drawline.c
+++ b/src/nvim/drawline.c
@@ -2230,6 +2230,7 @@ int win_line(win_T *wp, linenr_T lnum, int startrow, int endrow, int col_rows, s
mb_c = schar_get_first_codepoint(mb_schar);
char *p = get_extra_buf(len + 1);
memset(p, ' ', len);
+ p[len] = NUL;
wlv.p_extra = p;
for (int i = 0; i < tab_len; i++) {
if (*p == NUL) {