diff --git a/backends/libpurple/CMakeLists.txt b/backends/libpurple/CMakeLists.txt
index a53ef6d38af978a33dc91f215211ec692093447a..a01f1ab929ace51f8cf3b2325357352c545fa3db 100644
--- a/backends/libpurple/CMakeLists.txt
+++ b/backends/libpurple/CMakeLists.txt
@@ -6,7 +6,8 @@ ADD_EXECUTABLE(spectrum2_libpurple_backend ${SRC})
 if(NOT WIN32)
 target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin pthread)
 else()
-target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin)
+include_directories("${CMAKE_SOURCE_DIR}/msvc-deps/protobuf/libprotobuf")
+target_link_libraries(spectrum2_libpurple_backend ${PURPLE_LIBRARY} ${GLIB2_LIBRARIES} ${EVENT_LIBRARIES} transport-plugin libprotobuf)
 endif()
 
 INSTALL(TARGETS spectrum2_libpurple_backend RUNTIME DESTINATION bin)