diff --git a/web/gui/gr/editarAidf.zul b/web/gui/gr/editarAidf.zul
index a08da19d3..69dcc6095 100644
--- a/web/gui/gr/editarAidf.zul
+++ b/web/gui/gr/editarAidf.zul
@@ -82,7 +82,7 @@
 				<row>
 					<label
 						value="${c:l('busquedaAidfController.subserie.label')}" />
-					<textbox id="txtSubserie" width="30px" maxlength="3"
+					<textbox id="txtSubserie" width="40px" maxlength="5"
 						value="@{winEditarAidf$composer.aidf.subserie}"/>
 				</row>
 				<row>