diff --git a/repos/os/src/server/rom_filter/README b/repos/os/src/server/rom_filter/README
index db4d559657..6e142d28f2 100644
--- a/repos/os/src/server/rom_filter/README
+++ b/repos/os/src/server/rom_filter/README
@@ -36,8 +36,8 @@ The '<output>' node can contain the following sub nodes:
   nodes as the '<output>' node.
 
 :'<input>':
-  Copies all sub nodes named by the 'sub_node' attribute of the input ROM
-  specified by the 'name' attribute to the output node.
+  Copies the content of the input specified by the 'name' attribute to the
+  output node.
 
 :'<attribute>':
   Adds an attribute with the specified 'name' and 'value'. If the node
diff --git a/repos/os/src/server/rom_filter/input_rom_registry.h b/repos/os/src/server/rom_filter/input_rom_registry.h
index 43eb0cc1d9..6727b146b4 100644
--- a/repos/os/src/server/rom_filter/input_rom_registry.h
+++ b/repos/os/src/server/rom_filter/input_rom_registry.h
@@ -429,18 +429,17 @@ class Rom_filter::Input_rom_registry
 		}
 
 		/**
-		 * Lookup content of input with specified name
+		 * Generate content of the specifed input
 		 *
-		 * \throw Nonexistent_input_value
+		 * \throw Nonexistent_input_node
 		 */
-		Xml_node xml(Input_name const &input_name) const
+		void gen_xml(Input_name const &input_name, Genode::Xml_generator &xml)
 		{
 			Entry const *e = _lookup_entry_by_name(input_name);
-
 			if (!e)
 				throw Nonexistent_input_node();
 
-			return e->node();
+			xml.append(e->node().addr(), e->node().size());
 		}
 };
 
diff --git a/repos/os/src/server/rom_filter/main.cc b/repos/os/src/server/rom_filter/main.cc
index 184085ab50..75026c56da 100644
--- a/repos/os/src/server/rom_filter/main.cc
+++ b/repos/os/src/server/rom_filter/main.cc
@@ -345,23 +345,13 @@ void Rom_filter::Main::_evaluate_node(Xml_node node, Xml_generator &xml)
 		} else
 
 		if (node.has_type("input")) {
-			typedef Genode::String<128> String;
 
 			Input_name const input_name =
 				node.attribute_value("name", Input_name());
 
-			String const sub_node =
-				node.attribute_value("sub_node", String());
-
-			if (!sub_node.valid())
-				return;
-
 			try {
-				Xml_node input_node = _input_rom_registry.xml(input_name);
-
-				input_node.for_each_sub_node(sub_node.string(),
-				[&] (Xml_node node) { xml.append(node.addr(), node.size()); });
-			} catch (...) { }
+				_input_rom_registry.gen_xml(input_name, xml); }
+			catch (...) { }
 		}
 	};