diff --git a/srcpkgs/swiften/patches/fix-libxml2-2.12.patch b/srcpkgs/swiften/patches/fix-libxml2-2.12.patch
new file mode 100644
index 00000000000..3e3e4d16352
--- /dev/null
+++ b/srcpkgs/swiften/patches/fix-libxml2-2.12.patch
@@ -0,0 +1,15 @@
+diff -rup Swiften/Parser/LibXMLParser.cpp.orig Swiften/Parser/LibXMLParser.cpp
+--- a/Swiften/Parser/LibXMLParser.cpp
++++ b/Swiften/Parser/LibXMLParser.cpp
+@@ -97,7 +97,11 @@ bool LibXMLParser::parse(const std::stri
+     if (xmlParseChunk(p->context_, data.c_str(), boost::numeric_cast<int>(data.size()), false) == XML_ERR_OK) {
+         return true;
+     }
++#if LIBXML_VERSION >= 21200
++    const xmlError* error = xmlCtxtGetLastError(p->context_);
++#else
+     xmlError* error = xmlCtxtGetLastError(p->context_);
++#endif
+     if (error->code == XML_WAR_NS_URI || error->code == XML_WAR_NS_URI_RELATIVE) {
+         xmlCtxtResetLastError(p->context_);
+         p->context_->errNo = XML_ERR_OK;