diff --git a/spectrum/src/CMakeLists.txt b/spectrum/src/CMakeLists.txt
index 4a3e64320d7bd31c49daefdb1302eba19caf0bd7..aad30ebcc0295c46636aead443d907532dbeecac 100644
--- a/spectrum/src/CMakeLists.txt
+++ b/spectrum/src/CMakeLists.txt
@@ -6,7 +6,7 @@ ADD_EXECUTABLE(spectrum2 ${SRC})
 ADD_DEPENDENCIES(spectrum2 libpurple_backend)
 ADD_DEPENDENCIES(spectrum2 libircclient-qt_backend)
 
-target_link_libraries(spectrum2 transport)
+target_link_libraries(spectrum2 transport -lpthread -lssl -lidn -lxml2)
 
 INSTALL(TARGETS spectrum2 RUNTIME DESTINATION bin)