diff --git a/ui/gtk/main.c b/ui/gtk/main.c
index e30e4cee56..e10150f03a 100644
--- a/ui/gtk/main.c
+++ b/ui/gtk/main.c
@@ -2341,7 +2341,7 @@ main(int argc, char *argv[])
                 break;
             case 'D':        /* Print a list of capture devices and exit */
 #ifdef HAVE_LIBPCAP
-                if_list = capture_interface_list(&err, &err_str,main_window_update);
+                if_list = capture_interface_list(&err, &err_str, NULL);
                 if (if_list == NULL) {
                     if (err == 0)
                         cmdarg_err("There are no interfaces on which a capture can be done");
diff --git a/wireshark-qt.cpp b/wireshark-qt.cpp
index 8aa16c2841..4b50045dff 100644
--- a/wireshark-qt.cpp
+++ b/wireshark-qt.cpp
@@ -546,7 +546,7 @@ int main(int argc, char *argv[])
                 break;
             case 'D':        /* Print a list of capture devices and exit */
 #ifdef HAVE_LIBPCAP
-                if_list = capture_interface_list(&err, &err_str,main_window_update);
+                if_list = capture_interface_list(&err, &err_str, NULL);
                 if (if_list == NULL) {
                     if (err == 0)
                         cmdarg_err("There are no interfaces on which a capture can be done");