Index: branches/5.0.x/core/admin_templates/incs/custom_blocks.tpl
===================================================================
diff -u -r12117 -r12445
--- branches/5.0.x/core/admin_templates/incs/custom_blocks.tpl	(.../custom_blocks.tpl)	(revision 12117)
+++ branches/5.0.x/core/admin_templates/incs/custom_blocks.tpl	(.../custom_blocks.tpl)	(revision 12445)
@@ -1,5 +1,9 @@
 <inp2:m_DefineElement name="config_edit_text">
-	<input type="text" name="<inp2:CustomInputName/>" id="<inp2:CustomInputName/>" value="<inp2:Field field="$field"/>" <inp2:m_param name="field_params" />/>
+	<inp2:m_if check="m_param" name="field_params">
+		<input type="text" name="<inp2:CustomInputName/>" id="<inp2:CustomInputName/>" value="<inp2:Field field="$field"/>" <inp2:m_param name="field_params" />/>
+	<inp2:m_else/>
+		<input type="text" name="<inp2:CustomInputName/>" id="<inp2:CustomInputName/>" value="<inp2:Field field="$field"/>" style="width:100%"/>
+	</inp2:m_if>
 </inp2:m_DefineElement>
 
 <inp2:m_DefineElement name="config_edit_password">