diff --git a/pandora_console/ChangeLog b/pandora_console/ChangeLog
index 709d55da31..34bc5c1490 100644
--- a/pandora_console/ChangeLog
+++ b/pandora_console/ChangeLog
@@ -1,3 +1,7 @@
+2014-05-17  Junichi Satoh  <junichi@rworks.jp>
+
+	* include/functions_html.php: Fixed the PHP warning.
+
 2014-05-16  Junichi Satoh  <junichi@rworks.jp>
 
 	* include/languages/Makefile: Removed unavailable language files
diff --git a/pandora_console/include/functions_html.php b/pandora_console/include/functions_html.php
index 606536c3a1..62a43605a1 100644
--- a/pandora_console/include/functions_html.php
+++ b/pandora_console/include/functions_html.php
@@ -1405,6 +1405,7 @@ function html_print_table (&$table, $return = false) {
 			if (isset ($table->headstyle[$key])) {
 				$headStyle = ' style = "' . $table->headstyle[$key] . '" ';
 			}
+			else $headStyle = '';
 	
 			$output .= '<th class="'.$table->headclass[$key].'" ' . $headColspan . $headStyle . ' scope="col">'. $heading .'</th>';
 		}