diff --git a/test/Makefile.am b/test/Makefile.am
index ccd4075..a338bfe 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -6,3 +6,8 @@
 
 check_PROGRAMS =
 TESTS = $(check_PROGRAMS)
+
+check_PROGRAMS += internal_fd
+internal_fd_SOURCES = internal/fd.cpp
+internal_fd_CPPFLAGS = $(gtest_cppflags)
+internal_fd_LDADD = $(gtest_ldadd)