diff --git a/test/Makefile.am b/test/Makefile.am
index f7c41bd..15e8f72 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,3 +1,4 @@
+AM_CPPFLAGS = -I$(top_srcdir)
 check_PROGRAMS =
 
 TESTS = $(check_PROGRAMS)