diff --git a/libraries/Makefile b/libraries/Makefile
index aa64155f7bfc39e5785582e21913f8468c65e1de..b58777db51cccd3db0c9d62ca4179a8bedd77f0b 100644
--- a/libraries/Makefile
+++ b/libraries/Makefile
@@ -76,6 +76,7 @@ endif
 SUBDIRS += $(wildcard parallel)
 SUBDIRS_BUILD += $(wildcard ndp)
 SUBDIRS_BUILD += $(wildcard dph/dph-base)
+SUBDIRS_BUILD += $(wildcard dph/dph-prim-interface)
 SUBDIRS_BUILD += $(wildcard dph/dph-prim-seq)
 SUBDIRS_BUILD += $(wildcard dph/dph-prim-par)
 SUBDIRS_BUILD += $(wildcard dph/dph)