diff --git a/RepositoryExternal.mk b/RepositoryExternal.mk
index 46b1c1bb70ed..9659ec7c163f 100644
--- a/RepositoryExternal.mk
+++ b/RepositoryExternal.mk
@@ -3057,9 +3057,10 @@ endef
 else # !SYSTEM_POSTGRESQL
 
 ifeq ($(OS),WNT)
+$(if $(MPL_SUBSET),,\
 $(eval $(call gb_Helper_register_packages_for_install,postgresqlsdbc,\
 	postgresql \
-))
+)))
 endif # WNT
 
 define gb_LinkTarget__use_postgresql