diff --git a/py-multiprocess/Makefile b/py-multiprocess/Makefile
index 52a658948cb9842b2d6f5d748e3ae046fb2e5f8c..3d81466d9da01fa942fedfdb4e210b3a908be00e 100644
--- a/py-multiprocess/Makefile
+++ b/py-multiprocess/Makefile
@@ -18,6 +18,7 @@ LICENSE=		modified-bsd
 MAINTAINER=		gsaurel@laas.fr
 
 PYDISTUTILSPKG=		yes
+PYSETUPINSTALLARGS+=	--single-version-externally-managed --root=/
 MAKE_ENV+=		PYTHONPATH=${PREFIX}/${PYTHON_SITELIB}
 
 include ../../wip/py-dill/depend.mk
diff --git a/py-multiprocess/depend.mk b/py-multiprocess/depend.mk
index 5223a6eaeb5b499fb09e1257f28fba7d4df7bf87..cb6ad800229598369de680439513faae78bbc35b 100644
--- a/py-multiprocess/depend.mk
+++ b/py-multiprocess/depend.mk
@@ -21,7 +21,7 @@ DEPEND_ABI.py-multiprocess?=	${PKGTAG.python-}multiprocess>=0.6.1
 DEPEND_DIR.py-multiprocess?=	../../wip/py-multiprocess
 
 SYSTEM_SEARCH.py-multiprocess=	\
-  '${PYTHON_SITELIB}/multiprocess*.egg'
+  '${PYTHON_SYSLIBSEARCH}/multiprocess*.egg'
 
 endif # PY_MULTIPROCESS_DEPEND_MK ----------------------------------------------