diff --git a/application/libraries/Callbook.php b/application/libraries/Callbook.php
index 698c1724b..6d20466cb 100644
--- a/application/libraries/Callbook.php
+++ b/application/libraries/Callbook.php
@@ -55,26 +55,30 @@ class Callbook {
 			case 'qrz':
 				if ($this->ci->config->item('qrz_username') == null || $this->ci->config->item('qrz_password') == null) {
 					$callbook['error'] = 'Lookup not configured. Please review configuration.';
+				} else {
+					$callbook = $this->qrz($this->ci->config->item('qrz_username'), $this->ci->config->item('qrz_password'), $callsign, $this->ci->config->item('use_fullname'));
 				}
-				$callbook = $this->qrz($this->ci->config->item('qrz_username'), $this->ci->config->item('qrz_password'), $callsign, $this->ci->config->item('use_fullname'));
 				break;
 			case 'qrzcq':
 				if ($this->ci->config->item('qrzcq_username') == null || $this->ci->config->item('qrzcq_password') == null) {
 					$callbook['error'] = 'Lookup not configured. Please review configuration.';
+				} else {
+					$callbook = $this->qrzcq($this->ci->config->item('qrzcq_username'), $this->ci->config->item('qrzcq_password'), $callsign);
 				}
-				$callbook = $this->qrzcq($this->ci->config->item('qrzcq_username'), $this->ci->config->item('qrzcq_password'), $callsign);
 				break;
 			case 'hamqth':
 				if ($this->ci->config->item('hamqth_username') == null || $this->ci->config->item('hamqth_password') == null) {
 					$callbook['error'] = 'Lookup not configured. Please review configuration.';
+				} else {
+					$callbook = $this->hamqth($this->ci->config->item('hamqth_username'), $this->ci->config->item('hamqth_password'), $callsign);
 				}
-				$callbook = $this->hamqth($this->ci->config->item('hamqth_username'), $this->ci->config->item('hamqth_password'), $callsign);
 				break;
 			case 'qrzru':
 				if ($this->ci->config->item('qrzru_username') == null || $this->ci->config->item('qrzru_password') == null) {
 					$callbook['error'] = 'Lookup not configured. Please review configuration.';
+				} else {
+					$callbook = $this->qrzru($this->ci->config->item('qrzru_username'), $this->ci->config->item('qrzru_password'), $callsign);
 				}
-				$callbook = $this->qrzru($this->ci->config->item('qrzru_username'), $this->ci->config->item('qrzru_password'), $callsign);
 				break;
 			default:
 				$callbook['error'] = 'No callbook defined. Please review configuration.';