diff --git a/blocks/html/config_instance.html b/blocks/html/config_instance.html
index 876ad9728cf..f50c233da41 100755
--- a/blocks/html/config_instance.html
+++ b/blocks/html/config_instance.html
@@ -6,7 +6,7 @@
 </tr>
 <tr valign="top">
     <td align="right"><p><?php print_string('configcontent', 'block_html'); ?>:</td>
-    <td><?php print_textarea($usehtmleditor, 10, 50, 0, 0, 'text', isset($this->config->text)?$this->config->text:'') ?></td>
+    <td><?php print_textarea($usehtmleditor, 25, 50, 0, 0, 'text', isset($this->config->text)?$this->config->text:'') ?></td>
 </tr>
 <tr>
     <td colspan="3" align="center">