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-rw-r--r--trace2/tr2_sysenv.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/trace2/tr2_sysenv.c b/trace2/tr2_sysenv.c
index d3ecac2..048cdd5 100644
--- a/trace2/tr2_sysenv.c
+++ b/trace2/tr2_sysenv.c
@@ -68,6 +68,8 @@ static int tr2_sysenv_cb(const char *key, const char *value,
for (k = 0; k < ARRAY_SIZE(tr2_sysenv_settings); k++) {
if (!strcmp(key, tr2_sysenv_settings[k].git_config_name)) {
+ if (!value)
+ return config_error_nonbool(key);
free(tr2_sysenv_settings[k].value);
tr2_sysenv_settings[k].value = xstrdup(value);
return 0;