diff --git a/backends/libpurple/CMakeLists.txt b/backends/libpurple/CMakeLists.txt
index a01f1ab929ace51f8cf3b2325357352c545fa3db..7d8c9f0dfcf8083e657b09f1299bce71ee30e7f1 100644
--- a/backends/libpurple/CMakeLists.txt
+++ b/backends/libpurple/CMakeLists.txt
@@ -3,11 +3,11 @@ FILE(GLOB SRC *.cpp)
 
 ADD_EXECUTABLE(spectrum2_libpurple_backend ${SRC})
 
-if(NOT WIN32)
+if(CMAKE_COMPILER_IS_GNUCXX)
 target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin pthread)
 else()
 include_directories("${CMAKE_SOURCE_DIR}/msvc-deps/protobuf/libprotobuf")
-target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin libprotobuf)
+target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${LIBXML2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin libprotobuf)
 endif()
 
 INSTALL(TARGETS spectrum2_libpurple_backend RUNTIME DESTINATION bin)