diff --git a/bin/esiur.dart b/bin/esiur.dart
index 7c8d856..d2790ee 100644
--- a/bin/esiur.dart
+++ b/bin/esiur.dart
@@ -72,6 +72,10 @@ printUsage() {
   print("");
   print("Available commands:");
   print("\tget-template\tGet a template from an IIP link.");
+  print("\t\tFlags:");
+  print("\t\t\t-x, --getx\tGenerate apropriate getx bindings for resources.");
+  print(
+      "\t\t\t--namedargs\tUse named arguments instead of positional arguments for resource methods");
   print("\tversion: print esiur version.");
   print("");
   print("Global options:");
diff --git a/lib/src/Proxy/TemplateGenerator.dart b/lib/src/Proxy/TemplateGenerator.dart
index 3a641b9..b27ca65 100644
--- a/lib/src/Proxy/TemplateGenerator.dart
+++ b/lib/src/Proxy/TemplateGenerator.dart
@@ -377,10 +377,12 @@ class TemplateGenerator {
     });
 
     template.properties.forEach((p) {
-      var ptTypeName = getTypeName(template, p.valueType, templates, true);
-      rt.writeln("${ptTypeName} get ${p.name} { return get(${p.index}); }");
+      final ptTypeName = getTypeName(template, p.valueType, templates, true);
+      final suffix = p.valueType.type == DataType.String ? "?" : "";
       rt.writeln(
-          "set ${p.name}(${ptTypeName} value) { set(${p.index}, value); }");
+          "$ptTypeName$suffix get ${p.name} { return get(${p.index}); }");
+      rt.writeln(
+          "set ${p.name}($ptTypeName$suffix value) { set(${p.index}, value); }");
     });
 
     template.events.forEach((e) {