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-rw-r--r--epan/prefs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/prefs.c b/epan/prefs.c
index 89bc23f329..c4d5478fb1 100644
--- a/epan/prefs.c
+++ b/epan/prefs.c
@@ -2044,7 +2044,7 @@ set_pref(gchar *pref_name, gchar *value, void *private_data _U_)
} else {
cfmt->custom_occurrence = 0;
}
- if (cfmt->custom_field && cust_format_info[2]) {
+ if (cfmt->custom_field && cust_format_info[1] && cust_format_info[2]) {
cfmt->resolved = (cust_format_info[2][0] == 'U') ? FALSE : TRUE;
} else {
cfmt->resolved = TRUE;