diff --git a/RepositoryExternal.mk b/RepositoryExternal.mk
index 67d5be63b59b..eafe5ed185b2 100644
--- a/RepositoryExternal.mk
+++ b/RepositoryExternal.mk
@@ -272,8 +272,8 @@ endif # SYSTEM_HUNSPELL
 
 ifeq ($(SYSTEM_BOOST),YES)
 
-# No need of libboostdatetime at all
 define gb_LinkTarget__use_boostdatetime
+$(call gb_LinkTarget_add_libs,$(1),-lboost_date_time)
 endef
 
 else # !SYSTEM_BOOST