diff --git a/modules/pref-labels.php b/modules/pref-labels.php
index 5260e7659..565342700 100644
--- a/modules/pref-labels.php
+++ b/modules/pref-labels.php
@@ -81,6 +81,11 @@
 			$expr = db_unescape_string(trim($_GET["expr"]));
 			$descr = db_unescape_string(trim($_GET["descr"]));
 
+			if (!$expr) {
+				print "<div>Error: SQL expression is blank.</div>";
+				return;
+			}
+
 			print "<div>";
 
 			error_reporting(0);
diff --git a/utility.css b/utility.css
index 54e5b0552..d6cac4f22 100644
--- a/utility.css
+++ b/utility.css
@@ -64,15 +64,15 @@ div.error {
 h1 {
 	color : #88b0f0;
 	font-size : 16pt;
-	border-width : 0px 0px 1px 0px;
+/*	border-width : 0px 0px 1px 0px;
 	border-color : black;
-	border-style : solid;
+	border-style : solid; */
 }
 
 h2 {
 	color : #88b0f0;
 	font-size : 14pt;
-	border-width : 0px 0px 1px 0px;
+/*	border-width : 0px 0px 1px 0px;
 	border-color : black;
-	border-style : solid;
+	border-style : solid; */
 }