diff --git a/backends/libircclient-qt/CMakeLists.txt b/backends/libircclient-qt/CMakeLists.txt
index eed9a3ca3eabf1f65a500a07f34bffdc48f2cf44..9ac78875fe66b3e8f23dc8a37bf75133287281a1 100644
--- a/backends/libircclient-qt/CMakeLists.txt
+++ b/backends/libircclient-qt/CMakeLists.txt
@@ -4,7 +4,7 @@ FILE(GLOB HEADERS *.h)
 QT4_WRAP_CPP(SRC ${HEADERS})
 ADD_EXECUTABLE(spectrum_libircclient-qt_backend ${SRC})
 
-target_link_libraries(spectrum_libircclient-qt_backend ${IRC_LIBRARY} ${QT_LIBRARIES} transport)
+target_link_libraries(spectrum_libircclient-qt_backend ${IRC_LIBRARY} ${QT_LIBRARIES} transport  -lpthread -lssl -lidn -lxml2)
 
 INSTALL(TARGETS spectrum_libircclient-qt_backend RUNTIME DESTINATION bin)