diff --git a/headers/os/package/hpkg/HPKGDefs.h b/headers/os/package/hpkg/HPKGDefs.h
index 2ea360e044..f50d0bdf23 100644
--- a/headers/os/package/hpkg/HPKGDefs.h
+++ b/headers/os/package/hpkg/HPKGDefs.h
@@ -112,6 +112,8 @@ enum BHPKGAttributeID {
 	B_HPKG_ATTRIBUTE_ID_PACKAGE_CHECKSUM			= 39,
 	B_HPKG_ATTRIBUTE_ID_PACKAGE_VERSION_PRE_RELEASE	= 40,
 	B_HPKG_ATTRIBUTE_ID_PACKAGE_PROVIDES_COMPATIBLE	= 41,
+	B_HPKG_ATTRIBUTE_ID_PACKAGE_URL					= 42,
+	B_HPKG_ATTRIBUTE_ID_PACKAGE_SOURCE_URL			= 43,
 	//
 	B_HPKG_ATTRIBUTE_ID_ENUM_COUNT,
 };
diff --git a/src/kits/package/hpkg/PackageContentHandler.cpp b/src/kits/package/hpkg/PackageContentHandler.cpp
index 8abfc1d996..61878e172a 100644
--- a/src/kits/package/hpkg/PackageContentHandler.cpp
+++ b/src/kits/package/hpkg/PackageContentHandler.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Copyright 2009-2011, Ingo Weinhold, ingo_weinhold@gmx.de.
  * Distributed under the terms of the MIT License.
  */
 
@@ -58,6 +58,8 @@ static const char* kAttributeNames[B_HPKG_ATTRIBUTE_ID_ENUM_COUNT + 1] = {
 	"package:checksum",
 	"package:version.prerelease",
 	"package:provides.compatible",
+	"package:url",
+	"package:source_url",
 	NULL
 };