diff --git a/library/grt/src/grt.h b/library/grt/src/grt.h
index 47bfd637c..34417cf08 100644
--- a/library/grt/src/grt.h
+++ b/library/grt/src/grt.h
@@ -34,6 +34,7 @@
 #include <vector>
 #include <stdexcept>
 #include <boost/function.hpp>
+#include <libxml/tree.h>
 #include <libxml/xmlmemory.h>
 #include "base/threading.h"
 #include <string>
diff --git a/library/grt/src/unserializer.cpp b/library/grt/src/unserializer.cpp
index 6dda76d60..68fb8a11c 100644
--- a/library/grt/src/unserializer.cpp
+++ b/library/grt/src/unserializer.cpp
@@ -401,7 +401,11 @@ ValueRef internal::Unserializer::unserialize_xmldata(const char *data, size_t si
   xmlDocPtr doc = xmlReadMemory(data, (int)size, NULL, NULL, XML_PARSE_NOENT);
 
   if (!doc) {
+#if LIBXML_VERSION >= 21200
+    const xmlError* error = xmlGetLastError();
+#else
     xmlErrorPtr error = xmlGetLastError();
+#endif
 
     if (error)
       throw std::runtime_error(base::strfmt("Could not parse XML data. Line %d, %s", error->line, error->message));