diff --git a/generate_java.h b/generate_java.h
index 12d9f57..b67a88c 100644
--- a/generate_java.h
+++ b/generate_java.h
@@ -12,11 +12,13 @@
 using std::string;
 using std::vector;
 
+class JavaTypeNamespace;
+
 int generate_java(const string& filename, const string& originalSrc,
-                interface_type* iface);
+                  interface_type* iface, JavaTypeNamespace* types);
 
 android::aidl::Class* generate_binder_interface_class(
-    const interface_type* iface);
+    const interface_type* iface, JavaTypeNamespace* types);
 
 string gather_comments(extra_text_type* extra);
 string append(const char* a, const char* b);