diff --git a/api/js/etemplate/et2_extension_nextmatch.ts b/api/js/etemplate/et2_extension_nextmatch.ts
index a7fda0ba29..c510f1d171 100644
--- a/api/js/etemplate/et2_extension_nextmatch.ts
+++ b/api/js/etemplate/et2_extension_nextmatch.ts
@@ -1299,7 +1299,7 @@ export class et2_nextmatch extends et2_DOMWidget implements et2_IResizeable, et2
 		const colName = name + (name != "" && child_names.length > 0 ? "_" : "") + child_names.join("_");
 		if(colName == "")
 		{
-			this.egw().debug("info", "Unable to generate nm column name for ", _widget);
+			this.egw().debug("info", "Unable to generate nm column name for %o, no IDs", _widget);
 		}
 		return colName;
 	}