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-rw-r--r--setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/setup.c b/setup.c
index adede16a4d..4509598d57 100644
--- a/setup.c
+++ b/setup.c
@@ -372,6 +372,8 @@ int check_repository_format_version(const char *var, const char *value)
if (is_bare_repository_cfg == 1)
inside_work_tree = -1;
} else if (strcmp(var, "core.worktree") == 0) {
+ if (!value)
+ return config_error_nonbool(var);
if (git_work_tree_cfg)
free(git_work_tree_cfg);
git_work_tree_cfg = xstrdup(value);